MF-12A Compact Pinspotter

Duro Dyne’s MF has been the standard for entry level “through insulation” welders for over 30 years. Proven performance and high reliability have made the MF a “Must Have” for any sheet metal shop which does occasional insulating.

Duro Dyne now introduces the MF-12A, building on that history and creating a new pinspotter with greater power and versatility. Special design welding transformers allow the MF12A to deliver more power, precisely timed to the welding tip. The MF-12A will weld pins from 1/2 inch to 4 inches long on steel from 26 to 20 gauge. Proven solid-state weld control circuitry guarantees years of reliable,
trouble-free service in your shop.

27110 MF-12A Compact Pinspotter


MF-12A Literature Sheet
MF-12A Manual




PBF-520 Heavy Duty Pinspotter

The PBF-520 welds BDEP, SSP, CP, FTC, PN or LN type fasteners to ductwork from 26 to 16 gauge. Will accommodate pins up to 4″. It requires 220 volt, 50 to 60 hz service fused for 100 amps. Place a pin on the TP-9 magnetic tip, insert the pin through the insulation, give the pin a 1/4 twist and depress the trigger switch. For LN type fasteners use a TPL2 tip. For PN type fasteners use a TP2 tip.

27377 PBF-520 Heavy Duty Pinspotter

PBF520 Literature Sheet
PBF520 Manual




CCD110 Compact Pinspotter

The CCD110, Capacitor Discharge Welder, is designed for the convenience and comfort of the operator. It is powered by a 110 volt power source so it is ideal for smaller shops and light industrial applications. It will weld pins from 1/2″ to 4″ long onto steel from 26 to 20 gauge. Its portability on the job, enhanced by its adjustable shoulder strap, makes the CCD110 a smart choice for insulation applications. The CCD110 also features a stud capacity of up to 1/4″ steel and stainless steel for enhanced versatility.

27120 CCD110 Capacitor Discharge Pinspotter

CCD110 Capacitor Discharge Pinspotter
CCD110 Literature Sheet
CCD110 Manual






FPP4 Pinspotter Platform

(For use with the MF12A/MF12 Compact Pinspotter)

The latest breakthrough from the innovators of insulation fastening is the FPP4, a pinspotter platform that enhances the capabilities of a compact pinspotter. The FPP4 works in conjunction with the Duro Dyne MF12A/MF12 compact pinspotter (sold separately) to allow it to be utilized as both a hand held pinspotter and a fixed head pinspotter. This provides the customer with greater capabilities at a lower cost. The FPP4 requires 110 volts and 80 PSI in addition to the power required by the MF12A (208-230 VAC single phase with 60 amp circuit protection). Please note the FPP4 will not work if not powered by an MF Pinspotter.

18015 FPP4 Platform Pinspotter

FPP4 Platform Pinspotter for use with MF12A Compact Pinspotter

FPP4 Literature Sheet
FPP4 Manual








FG MACH III Automatic Bulk Feed Pinspotter

The FG Mach III Pinspotter was designed utilizing the best of current technologies to provide greater power and reliability for insulation fastening. The inherent minimal material handling and the use of welded pins will insure your shop a cost efficient, quality product. Our upgraded FG Mach III machine is capable of welding pins up to 4″ to address the higher R-value insulation now being specified throughout the industry.

18004 FG MACH III Automatic Bulk Feed Pinspotter

FG MACH III Automatic Bulk Feed Pinspotter


FG MACH III Literature Sheet




RH MACH III Rolling Head Automatic Pinspotter

The RH MACH III welds BDEP, SSP, CP & FTC type fasteners to ductwork up to 18 gauge. It requires 220v, 50 to 60hz service, fused for 100 amps. A source of 85 psi air is required. Position a fastener over the insulation and depress the trigger switch. The machine inserts the fastener through the insulation and welds it to the steel.

18005 RH MACH III Rolling Head Automatic Pinspotter

RH MACH III Rolling Head Automatic Pinspotter

RH MACH III Rolling Head Pinspotter
Literature Sheet

RH MACH III Rolling Head Pinspotter Manual





Optional Lift Kit For FG and RH Pinspotters

An optional machinery lift kit is also available for a custom ergonomic work space. Multi-Height Pinspotter Lift Kit will allow for height increase of 4″ or 6″.

17135 FG/RH Lift Kit

FG and RH Lift Kit






To view previous versions of Duro Dyne Pinspotters, please click here