ARC STUD WELDING SYSTEMS

Transcription

1 ARC STUD WELDING SYSTEMS ARE complete stud welding systems which weld ARC studs using the ARC stud welding process. CONSIST OF the following items: An ARC stud welding power supply with built-in timer/control An ARC stud welding gun* A system power cable A system ground cable A gun extension cable set *The gun requires additional accessories depending on the part to be welded & its application. ARE GENERALLY USED FOR WELDING: Large diameter studs (1/4 diameter or larger) When base material is thick (18 Ga. Or heavier for steel) When base material is rough, dirty, or painted When high fastener strength is required Page 14-2 will help you select the stud welding system to meet your ARC stud welding requirements. Houston, Texas

2 ARC STUD WELDING SYSTEM SELECTION GUIDE WHEN YOUR AC POWER AVAILABILITY IS YOUR STUD WELD BASE DIAMETER RANGE IS AND YOUR WELDING AREA IS *THESE SYSTEMS CAN MEET YOUR REQUIREMENTS SUNBELT PRO WELD ARC-400 ARC-900 ARC-656 ARC-800 ARC-1200 ARC-1850 ARC-3000 SINGLE PHASE 12 GA 1/2 LOCAL OR LARGE 12 GA 5/16 LOCAL 12 GA 1/2 LOCAL 3 PHASE 12 GA 5/8 LOCAL 1/4-7/8 LOCAL NO AC POWER AVAILABLE 1/4 1 1/4 LARGE OR MULTI- LEVEL 1/2 1-1/4 REMOTE F I E L D D I E S E L *Please refer to the IT Arc Welders in Section 14 for additional Stud Welding System options. Houston, Texas

3 ARC WELDERS: SUNBELT ARC-400 DESCRIPTION/FEATURES The ARC-400 is a compact stud welding system for drawn arc and short cycle stud welding Welding materials: steel (unalloyed and alloyed), weldable special alloys, stainless steel Highest operational reliability and simple handling Excellent welding quality, high power on time All important functions are indicated and controlled by LED Welding time continuously adjustable Protection of the unit in case of a fault on welding/control line cable and solenoid Light and handy, especially suitable for mobile use Compact construction, low weight Robust, powder coated metal housing Powder coated front-plate with screen print (scratch and abrasion-resistant), ensures longtime readability of all labeling SPECIFICATIONS Dimensions: 8 W x 10 H x 16 L Welding Time: ms, continuously adjustable Weight: 60 lbs. Stud Range: 12GA 5/16 Welding Current: 400 A Weld Rate: up to 25 studs per minute Fuse: 35 AT Input: A, A, 60 Hz 3-Phase PARTS LIST DESCRIPTION PART NO. DESCRIPTION PART NO. System Complete B-S4004 Gun Only (PHM-12) B Power Unit Only B Ground Cable B Houston, Texas

4 ARC WELDERS: SUNBELT ARC-700 DESCRIPTION/FEATURES The ARC-700 is a compact stud welding system for drawn arc and short cycle stud welding Welding materials: steel (unalloyed and alloyed), aluminum, weldable special alloys, stainless steel Highest operational reliability and simple handling Excellent welding quality, high power on time Digital display of selected welding time All important functions are indicated and controlled by LED Welding time continuously adjustable (timing divided up into two time domains for especially precise adjustment) Protection of the unit in case of a fault on welding/control line cable and solenoid Light and handy, especially suitable for mobile use Compact construction, low weight Robust, powder coated metal housing Powder coated front-plate with screen print (scratch and abrasion-resistant), ensures longtime readability of all labeling SPECIFICATIONS Dimensions: 11 W x 10 H x 18.5 L Welding Time: ms, continuously adjustable Weight: 81 lbs. Stud Range: 12GA 3/8 Welding Current: 680 A Weld Rate: up to 25 studs per minute Fuse: 25 AT Input: A, A, 60 Hz 3-Phase PARTS LIST DESCRIPTION PART NO. DESCRIPTION PART NO. System Complete B-S3100 Gun Only (PHM-12) B Power Unit Only B Ground Cable B Houston, Texas

5 ARC WELDERS: SUNBELT ARC-900 DESCRIPTION/FEATURES The ARC-900 is a compact stud welding system for drawn arc and short cycle stud welding Welding materials: steel (unalloyed and alloyed) weldable special alloys, stainless steel Highest operational reliability and simple handling Excellent welding quality, high power on time Digital display of selected welding time All important functions are indicated and controlled by LED Welding time continuously adjustable (timing divided up into two time domains for especially precise adjustment) Protection of the unit in case of a fault on welding/control line cable and solenoid Light and handy, especially suitable for mobile use Compact construction, low weight Robust, powder coated metal housing Powder coated front-plate with screen print (scratch and abrasion-resistant), ensures longtime readability of all labeling SPECIFICATIONS Dimensions: 11 W x 10 H x 18.5 L Welding Time: ms, continuously adjustable Weight: 82 lbs. Stud Range: 12GA 1/2 Welding Current: 900 A Weld Rate: up to 25 studs per minute Fuse: 35 AT Input: A, A, 60 Hz 3-Phase PARTS LIST DESCRIPTION PART NO. DESCRIPTION PART NO. System Complete B-S3004 Gun Only (PHM-12) B Power Unit Only B Ground Cable B Houston, Texas

6 ARC WELDERS: ARC-656 FEATURES Designed and built in USA Precise weld time and weld current adjustments. Lightweight aluminum cabinet Short cycle capabilities Diagnostic L.E.D. s State of art gun control circuitry Portable, powder coated 1-yr. warranty on pr. Circuit board DESCRIPTION The ARC-656 is a compact, lightweight stud welding power supply capable of welding studs through 1/2 diameter reduced weld base. The power supply, which operates on three-phase power, produces a smooth, stable welding arc. The front panel digital display indicates the weld time, which is infinitely adjustable for preciseness and repeatability. The expanded time range provides fine adjustment of weld time for special short cycle applications such as welding to thin materials. A specially designed electronic gun control circuit has been incorporated to increase overall reliability. If a fault condition occurs due to a shorted gun solenoid or a faulty control cable, the circuit will prevent gun retriggering and eliminate damage to printed circuit boards. SPECIFICATIONS Dimensions: 8-1/4 H x 11-1/4 W x 17 D Output: VDC Weight: 77 lbs. Input: 230/460/575 VAC 3 Phase 60 Cycle Duty Cycle: 3/8 8/Min Fusing: 60/30/30 Delay Type Timer Control: sec. COMPONENTS DESCRIPTION PART NO. System System w/dampner Power Supply Weld Gun W/25 Cable Length W/Dampner Houston, Texas

7 ARC WELDERS: ARC 800 FEATURES Designed and built in USA Regulated output current Precise weld time and weld current adjustments. Storage Compartment Diagnostic L.E.D. s State of the art gun control circuitry Thermally Protected Portable Easy access to control circuitry DESCRIPTION The ARC-800 is a compact and portable stud welding power supply capable of welding studs through 1/2 diameter weld base. The power supply, which operates on single-phase power, has the added feature of weld current regulation that improves stud welding consistency. Both the weld time and weld current are infinitely adjustable for preciseness and repeatability. A specially designed electronic gun control circuit has been incorporated to increase overall reliability. If a fault condition occurs due to a shorted gun solenoid or a faulty control cable, the circuit will prevent gun retriggering and eliminate damage to printed circuit boards. SPECIFICATIONS Dimensions: 36-1/2H x 16 W x 14 D Output: 900 Amps Weight: 150 lbs. Duty Cycle: (1/4: 14/Min) (5/16: 12/Min) (3/8: 10/Min) (1/2: 5/Min) Input: 208/230/460 VAC Fusing: 100/100/50 Amps Single Phase 60 HZ Timer Control: Stepless Adjustable Sec Current Control: Stepless Adjustable Amps COMPONENTS DESCRIPTION PART NO. DESCRIPTION PART NO. System Gr. Cable 1/0 x Power Supply Combo Cable 1/0 x Gun Houston, Texas

8 ARC WELDERS: ARC 1200 FEATURES Designed and built in USA Regulated output current Precise weld time and weld current adjustments. Dual time range Short cycle capabilities Diagnostic L.E.D. s State-of-the-art gun control circuit Built in chuck saver Portable, Powder coated DESCRIPTION The ARC-1200 is a compact and portable stud welding power supply capable of welding studs through 5/8 diameter weld base. The fully regulated power supply, which operates on three-phase power, produces a smooth, stable welding arc. Both the weld time and weld current are infinitely adjustable for preciseness and repeatability. For maximum flexibility the weld time can be switched between two ranges. The expanded short time range provides fine adjustment of weld time for special short cycle applications such as welding to thin materials. A specially designed electronic gun control circuit has been incorporated to increase overall reliability. If a fault condition occurs due to a shorted gun solenoid or a faulty control cable, the circuit will prevent gun retriggering and eliminate damage to printed circuit boards. SPECIFICATIONS Dimensions: 27-1/2 H x 17 W x 22 D Output: VDC Weight: 194 lbs. Duty Cycle: (1/4: 20/Min) (5/16: 15/Min) (3/8: 13/Min) (1/2: 8/Min) (5/8: 4/Min) Input: 230/460/575 VAC Fusing: 120/60/50 Delay Type Three Phase 60 HZ Timer Control: Stepless Adjustable Range Current Control: Stepless Adjustable (A: Sec.) (B: Sec) Amps COMPONENTS DESCRIPTION PART NO. DESCRIPTION PART NO. System Gr. Cable 1/0 x Power Supply Combo Cable 1/0 x Gun Houston, Texas

9 ARC WELDERS: ARC 1850 FEATURES Designed and built in USA Constant current output Single or dual gun systems Independent gun controls Precise weld time and weld current adjustments Digital display of actual weld time & weld current Diagnostic L.E.D. s State of the art gun control circuitry Built-in chuck saver Auto safety shutdown DESCRIPTION The ARC-1850 is a fully regulated stud welding power supply that is available in a single or dual gun version. Both versions have the constant output feature that allows the unit to be used as a power source that can operate external stud welding control units. Stick welding and Arc air gouging processes are available only as an option. An added feature in the ARC is the ability to dial in the desired weld time and weld current before even making a weld. By selecting the setup mode, the weld time and current an be adjusted and displayed on the front panel digital meters. A specially designed electronic gun control circuit has been incorporated into the system. If a fault condition occurs due to a shorted gun solenoid or a faulty control cable, the circuit will prevent gun retriggering and eliminate damage to printed circuit boards. SPECIFICATIONS Dimensions: 26 H x 24 W x 33 D Output: VDC Weight: 500 lbs. Duty Cycle: (12 GA 5/8 : Unlimited) (3/4 : 10/Min) (7/8 : 4/Min) Input: 230/460/575 VAC Three Phase 60 HZ Fusing: 200/100/90 Delay Type Timer Control: sec. Current Control: amp COMPONENTS DESCRIPTION PART NUMBER System Single S Dual D Power Supply Single Dual Weld Gun Ground Cable: 4/0 x 25 ft Combo Cable: 4/0 x 50 ft Houston, Texas

10 ARC WELDERS: ARC 3000 FEATURES Designed and built in USA Constant current output Single or dual gun systems Independent gun controls Precise weld time and weld current adjustments Digital display of actual weld time & weld current Diagnostic L.E.D. s State of the art gun control circuitry Built-in chuck saver Auto safety shutdown DESCRIPTION The ARC-3000 is a fully regulated stud welding power supply that is available in a single or dual gun version. Both versions have the constant output feature that allows the unit to be used as a power source that can operate external stud welding control units. An added feature in the ARC-3000 is the ability to dial in the desired weld time and weld current before even making a weld. By selecting the setup mode, the weld time and current can be adjusted and displayed on the front panel digital meters. A specially designed electronic gun control circuit has been incorporated into the system. If a fault condition occurs due to a shorted gun solenoid or a faulty control cable, the circuit will prevent gun retriggering and eliminate damage to printed circuit boards. This system is capable of welding studs from 1/4 thru 1-1/4 diameter with preciseness and repeatability. SPECIFICATIONS Dimensions: 36 H x 28 W x 40 D Weight: 950 lbs. Input: 230/460/575 VAC 3-Phase 60 Cycle Timer Control: Stepless adjustable sec. System Power Supply COMPONENTS DESCRIPTION Output: VDC Duty Cycle: (1/4 3/8: Unlimited) (1/2 : 60/Min) (5/8 : 30/Min) (3/4 : 20/Min) (7/8 : 15/Min) (1 : 10/Min) Fusing: 400/200/180 Delay Type Cur. Control: Stepless Adj Amp. PART NUMBER Single S Dual D Single Dual Weld Gun Ground Cable: 4/0 x 25 ft Combo Cable: 4/0 x 50 ft Houston, Texas

11 Houston, Texas

12 ARC WELDERS: ARC-500 ARC- 800 *See page for the technical data sheet on these units. Houston, Texas

13 TECHNICAL DATA SHEET ARC WELDERS: ARC-500 ARC-800 TYPE ARC-500 ARC-800 GAS/AUTOMATIC: Option/Option Standard/Option RANGE: 14 Ga. To 3/8 #4 to 1/2 MATERIAL: Mild steel, stainless steel, aluminum RATE: 8 to 35 studs/minute depending on application and stud diameter CURRENT: 580A 800A TIME: 5 to 350 msec. 5 to 1000 msec. PRIMARY POWER: 230 & 460V, 3 phases, 32A, 50/60 Hz (alt. input voltages available) FUSE: 35 AT GUN: Several models to choose from POWER SOURCE: Transformer/Rectifier DIMENSIONS: 18.5 L x 9.l W x 8.7 H without handle WEIGHT: 68 lbs. 8l lbs PART #: (Gas) (Gas) (Gas/Automatic) (Gas/Automatic) Modern technology with extremely wide welding range For welding with ceramic ferrules or with inert gas Operating by membrane keyboard and display panel Digital display of welding time in msec. Inert gas module ARC 800 standard (ARC 500 option) Option automatic mode Thermally controlled fan FEATURES: Guided cooling air flow to the transformer to protect electronic components from being polluted Emergency circuit to cut off the complete unit in case of defective power circuit Integrated mains filter protects uniform voltage peaks and spikes Galvanic separation of control and welding cables provide reliable operation Sturdy metal housings; small dimensions and low weight Depending on mains fuse, configuration also for 16 amps primary power supply possible (ARC 500) Superior welding quality Excellent reliability ADVANTAGES: High duty cycle Easiest operation Designed for jobsite Best price/performance ratio Tested for high vol. Deviation EMC tested FUNCTION CONTROL: Lift test at welding gun or welding head WELDING Houston, Texas

14 ARC WELDERS: IT 1002 Technical Data Gas/Automation/Process control Series/Option/Option Welding range #4 to 5/8, dia. 14ga to 9/16 (M3 to MR16, dia. 2 to 14mm) Welding material Mild steel, stainless steel, aluminum Welding rate ½ (M12) = 25 studs per minute Welding current 1,000 A (max.) Current adjustment range Stud welding 100 to 1,000 A, electrode 50 to 400 A (stepless) Welding time 5 to 1,000 msec (stepless) Primary power 480/460 V, 3 phases, 50/60 Hz, 35 AT (alternative input voltages available) Connected load 50 KVA (with 400 V mains), 40kw Cooling type F (temperature controlled cooling fan) Protection class IP 23 Operation and storage conditions According to current standards Dimensions L x W x H 26 x 11 x 13.4 (660 x 280 x 340 mm) without handle Weight 63.9 lbs (29 kg) Order No (Gas) (Gas/Automation) (Gas/Automation/Process control) Features Display infinitely adjustable power setting; easy monitoring of all functions via LED displays; easy operation via membrane keyboard and digital display; setting of welding parameters, programs, shielding gas, automation and process monitoring possible; digital display of current, welding and gas-preflow time (optional: pneumatic feed time for automation); separate settings for welding current and welding time) Powerful built-in power reserves Trouble-free changing of welding voltage polarity by reconnecting welding current & ground cables Outstanding welding quality very high arc stability even at weak welding currents High process flexibility high clock frequency (30kHz) of unit allows highly dynamic regulation of welding process 2 in 1 switchable from drawn-arc ignition to electrode welding Suitable stud welding guns Suitable heads A 12, A 16, Al 06 PAH-1 (only suitable for automatic version) CA 08 KAH 412 (only suitable for automatic version) Houston, Texas

15 TECHNICAL DATA SHEET ARC WELDERS: IT 1002 General Information Application Especially suitable for thicker sheets of about.093 inches (2 mm) or higher Process Variants Short cycle drawn arc welding Drawn arc welding Equipment Welding with ceramic ferrule (series) Welding with shielding gas (series) Automation (optional) Process sequence control (optional) Advantages Features Microcontroller for precise process times, optimal functional reliability and maximum operating convenience Function monitoring automatic function test following power-up; monitoring of all internal system functions Display of error codes on digital display Lift test for gap welding guns and welding heads Library function automatic specification of welding current and welding time through selection of stud diameter according to welding range (with and without shielded gas); fine adjustment via arrow keys Process monitoring recording and analysis of factors affecting the welding process; after each weld, the reference and actual values are compared; display of the welding energy input; switchable automatic welding stop if limits are exceeded RS232 Interface for data output; data and time of day are stored; welding parameters of each weld are logged (only for version gas/automation/process control) Structure Extremely easy to operate Compact/Mobile highly mobile thanks to compact dimensions and low weight (50% less weight compared to conventional stud welding units) Robust metal housing withstands rough treatment in shop and on site Safety With integrated mains filter (protection against voltage peaks) Optimal for construction sites with large mains voltage fluctuations use even with critical voltage supply ±10% EMC test High-voltage test with log Retriggering lock-out prevents welding on a welding element that has already been set Thermal monitoring of transformer automatic shutdown in case of overheating Temperature-regulated ventilator reduces noise and dust in the stud welding unit (greater reliability) Control unit galvanically separated from welding lines high degree of functional safety Optimal protection against external interferences Protection class IP 23 Also permits operation outdoors Houston, Texas

16 ARC WELDERS: ARC-1550 Houston, Texas

17 TECHNICAL DATA SHEET ARC WELDERS: ARC-1550 TYPE ARC 1550 GAS/AUTOMATIC: Standard/Option RANGE: 12 Ga. To 3/4 MATERIAL: Mild steel, stainless steel RATE: 5/8 = 10 studs per minute CURRENT: 1550A TIME: 5 to 1500 msec (stepless) PRIMARY POWER: 230 & 460V, 50/60 Hz, 3 phases (alternative input voltages available) PRIMARY PLUG: 63 AT (AT 400 V mains) CURRENT CONS. 40 KVA (at 400 V mains) GUN: Several models to choose from DIMENSIONS: 16.2 L x 15.7 W x 28.7 H WEIGHT: 293 lbs. PART #: Gas Gas/Automatic Display of welding time and gas flow time (optional: stud feeding time with automation) Control and monitoring of internal unit functions Energy control for constant energy input Recording the welding energy by reference welding Automatic control and compensation for all following welding Simplest handling via display and key pad Variable adjustment of welding current (500A-800A-1000A- 1200A-1550A) Equipped for welding with inert gas FEATURES: Option for automatic operation Repeat cycle lock: prevents unintentional repeat of welding cycle on a welded stud Rigid housing especially designed for job site applications Highest mobility due to trolley design and big air-wheels Low weight and compact design High duty cycle due to optimized cooling air flow Excellent reliability, protection against heat and dirt Easy service accessibility Thermally controlled fan for noise reduction/reduced unit pollution Insulation class IP 23 Small dimensions, low weight, crane hook for easy transportation FUNCTION CONTROL: Lift test at welding gun or welding head Flashing display for active energy mode WELDING Houston, Texas

18 ARC WELDERS: IT 2002 Technical Data Gas Option Welding range #4 to 1, dia. 14ga to 1 (M3 to M24, dia. 2 to 25mm) Welding material Mild steel, stainless steel, aluminum Welding rate 7/8 = 7 studs per minute (dia. 22 mm = 7 studs/min) Welding current 2,000 A (max.) Current adjustment range 300 to 2,000 A (stepless) Welding time 5 to 1,500 msec (stepless) Primary power 480/460 V, 3 phases, 50/60 Hz, 63 AT (alternative input voltages available) Connected load 100 KVA (with 400 V mains), 80kw Cooling type F (temperature controlled cooling fan) Protection class IP 23 Operation and storage conditions According to current standards Dimensions L x W x H 23.6 x 19.7 x 32.7 (600 x 500 x 830 mm) without handle Weight lbs (95 kg) Order No (Gas) Features Microcontroller for precise process times, optimal functional reliability and maximum operating convenience Function monitoring automatic function test following power-up; monitoring of all internal system functions Lift test for gap welding guns and stud welding heads Library function automatic specification of welding current and welding time through selection of stud diameter according to welding range (with and without shielded gas); fine adjustment via arrow keys Suitable stud welding guns A 12 A 16 A 22 A 25 Al 06 Houston, Texas

19 TECHNICAL DATA SHEET ARC WELDERS: IT 2002 General Information Application Especially suitable for thicker sheets of about.093 inches (2 mm) or higher Especially suitable for welding of concrete anchors/shear connectors for job site applications Suitable for through deck welding Process Variants Short cycle drawn arc welding Drawn arc welding Equipment Welding with ceramic ferrule (series) Welding with shielding gas (optional) Advantages Structure Extremely easy to operate Compact Mobile highly mobile thanks to compact dimensions and low weight (50% less weight compared to conventional stud welding units) Robust metal housing withstands rough treatment in shop and on site Safety With integrated mains filter (protection against voltage peaks) Optimal for construction sites with large mains voltage fluctuations use even with critical voltage supply ±10% EMC test High-voltage test with log Retriggering lock-out prevents welding on a welding element that has already been set Thermal monitoring of transformer automatic shutdown in case of overheating Temperature-regulated ventilator reduces noise and dust in the stud welding unit (greater reliability) Control unit galvanically separated from welding lines high degree of functional safety Optimal protection against external interferences Protection class IP 23 Also permits operation outdoors Welding Display infinitely adjustable power setting; easy monitoring of all functions via LED displays; easy operation via membrane keyboard and digital display; setting of welding parameters, programs, shielding gas (optional); digital display of current, welding and gas-preflow time; separate settings for welding current and welding time Powerful built-in power reserves Trouble-free changing of welding voltage polarity possible for reconnecting welding current and ground cables Outstanding welding quality very high arc stability even at weak welding currents High process flexibility high clock frequency (30 khz) of stud welding unit allows highly dynamic regulation for welding process Houston, Texas

20 ARC WELDERS: IT 3002 Technical Data Gas Option Welding range #4 to 1 1/4, dia. 14 ga to 1 (M3 to M31, dia. 2 to 31mm) Welding material Mild steel, stainless steel, aluminum Dia. 1 = 6 studs/min (dia 25 mm = 6 studs/min) Welding rate Through deck welding 3/4" = 12 studs/min (300 feet, AWG 4/0) Industrial application 3/4 = 14 to 15 studs/min Welding current 2600 A (max.) Current adjustment range 300 to 2600 A (stepless) Welding time 5 to 1500 msec (stepless) Primary power 480/460 V, 3 phases, 50/60 Hz, 125 AT (alternative input voltages available) Connected load 150 KVA (with 400 V mains), 120 kw Cooling type F (temperature controlled cooling fan) Protection class IP 23 Operation and storage conditions According to current standards Dimensions L x W x H 25.6 x 22 x 50.8 (650 x 560 x 1290 mm) without handle Weight lbs (160 kg) Order No (1 Gun connection) Features Microcontroller for precise process times, optimal functional reliability and maximum operating convenience Function monitoring automatic function test following power-up; monitoring of all internal system functions Lift test for gap welding guns and stud welding heads Library function automatic specification of welding current and welding time through selection of stud diameter according to welding range (with and without shielded gas); fine adjustment via arrow keys Suitable stud welding guns A 12 A 16 A 22 A 25 Al 06 Houston, Texas

21 TECHNICAL DATA SHEET ARC WELDERS: IT 3002 General Information Application Especially suitable for thicker sheets of about.093 inches (2 mm) or higher Especially suitable for welding of concrete anchors/shear connectors for job site applications Suitable for through deck welding Process Variants Short cycle drawn arc welding Drawn arc welding Equipment Welding with ceramic ferrule (series) Advantages Structure Extremely easy to operate Compact Mobile highly mobile thanks to compact dimensions and low weight (50% less weight compared to conventional stud welding units) Robust metal housing withstands rough treatment in shop and on site Safety With integrated mains filter (protection against voltage peaks) Optimal for construction sites with large mains voltage fluctuations use even with critical voltage supply ±10% EMC test High-voltage test with log Retriggering lock-out prevents welding on a welding element that has already been set Thermal monitoring of transformer automatic shutdown in case of overheating Temperature-regulated ventilator reduces noise and dust in the stud welding unit (greater reliability) Control unit galvanically separated from welding lines high degree of functional safety Optimal protection against external interferences Protection class IP 23 Also permits operation outdoors Welding Display Infinitely adjustable power setting; easy monitoring of all functions via LED displays; easy operation via membrane keyboard and digital display; setting of welding parameters, programs, shielding gas (optional); digital display of current, welding and gas-preflow time; separate settings for welding current and welding time Powerful built-in power reserves Trouble-free changing of welding voltage polarity possible by reconnecting welding current and ground cables Outstanding welding quality very high arc stability even at weak welding currents High process flexibility high clock frequency (30 khz) of stud welding unit allows highly dynamic regulation of welding process Houston, Texas

22 RENTAL EQUIPMENT LARGE RENTAL FLEET D Sunbelt Stud Welding, Inc. stocks a complete line of stud welding equipment. Equipment is available to rent per day, per week, or per month. Houston, Texas