TÜV SÜD Field Inspected Projection Spot Welder

General Information

This machine was designed to meet the more stringent electrical requirements introduced in the new NFPA 79:2018 electrical codes, and ever increasing safety demands of OSHA and Nationally Recognized Testing Labs (NRTLs) like UL, TUV, CEA, and ETL.

This machine will ship with a TÜV SÜD field label sticker, as well as a Verification Letter to the NFPA 79 standard.

• Assumes all safety critical components have appropriate certifications and are appropriately listed as required.
• Manuals, BOM, and electrical drawings are provided electronically for each unit to be labeled.

This machine is a Projection Welder, based on our PRPP design.

The PRPP is our full size model press, RWMA size “2”.

• 24″ standard throat depth
• 120KVA with 25kA max short circuit amperage
• 5″ (127mm) bore weld cylinder generating 1900lbsf @ 100PSI (845daN @ 7bar)
• Fixed Retractable weld cylinder (non-adjustable), 3″ retract with 2″ weld stroke
• Weld Control: WTC/Medar 4001 control, 1650A SCR, constant current, 250A built in circuit protection, QPS Field Evaluation sticker, remote DEP600 pendant
• Constant current, for programming amperage and getting the same current at every weld
• Unitrol SoftTouch safety system for press welders with retract protection and timed bypass switch, proximity switch detection of air cylinder
• Electronic Air, includes WTC analog I/O board, transducer, and volume booster kit for programming pressure into select weld schedules.
• Water Flow Switch included
• Water-Saver system automatically shuts off water when the machine is not in use, turns water on when welder is in use.  Includes timer, valve, and relay.
• Quick-disconnect fittings on electrode holders, color-coded water lines (hot/cold)
• Forklift pockets included on frame
• Stainless steel hardware on secondary loop
• Axillary A, B, C selector 3-position switch, for quick access to three weld schedules.
• TUV field inspection of Press Projection spot welder model #PRPP-120-24-460-1-WTC41 to NFPA 79, with field label sticker and Verification Letter.
• Machinery Gray Lite (RAL 7035)
• Inspected at our location in St. Paul, MN
• Designed and build in the USA, from products made in the USA

Power Requirements

• 460V/60Hz/1-phase
• effective continuous primary current : 184A
• cable size : 2/0 **Size is expressed in AWG or MCM copper conductor and is based on a 100
  foot run in non-magnetic conduit with cables in contact and absorbing 5% voltage drop maximum at 30% power factor. Cable NEMA type RH, RUH, 75C insulation or equiv. used at 30C max. For runs longer than 100 feet, please contact manufacturer.
• 250A built-in circuit breaker

Capabilities (per AWS/RWMA standards; AWS C1.1M/C1.1 Recommended Practices…)

• galvanized steel sheet: 0.078″ + 0.078″ (2mm + 2mm)
• low carbon mild steel sheet, class A: 0.135″ + 0.135″ (3.5mm + 3.5mm)
• stainless steel sheet: 0.078″ + 0.078″ (2mm + 2mm)

Fastener capabilities

• M12 mild steel studs
• M12 mild steel nuts

Note: Any modifications to this machine specification will negate TÜV SÜD field certification.