RX-84 Long Arm & Wide Hot Knives

The RX-84 series are general and special purpose hot knives mounted on a 'long-arm' frame for providing extra working area under the knife. The RX-84 models can be fitted with almost any of our hot knife tooling, such as a straight knife, shaped knife, or hole punch, for example. These are ideal for cutting large panels, punching holes in finished goods, cutting sling webbing, or other types of synthetic fabrics.

Download RX-84 Long-Arm Hot Knife and Wide Hot Knife brochure.

Some common model configurations include:

webbing sealer, sling cutter, tie down cutter
RX-84-BAL industrial hot knife, heat cutting machine

RX-84-BAL 5" Heavy-duty hot knife

5" (128mm) LONG ARM MODELS
 
RX-84-BAL 5" Heavy Duty Hot Knife

 

RX-84-BAL 5" (128mm) Heavy duty brass- suitable for most hot knife applications and materials up to 3/4" (20mm) thick. Ideal for slings, seatbelt, cord, and most webbings.



RX-84-SAL 5" Heavy Duty SS Hot Knife

RX-84-SAL 5" (128mm) Heavy-duty stainless steel - suitable for most hot knife applications and materials up to 3/4" (20mm) thick. Ideal for seatbelt, cord, and most webbings.

RX-84-SBL 5" Standard Duty SS Hot Knife

RX-84-SBL 5" (128mm) Standard stainless steel knife is ideal for ribbon, hook and loop, polypropylene webbing, and thin synthetic materials.

Brass knives vs. Stainless knives

What's the difference?

Knives that cut using heat must be able to efficiently transfer the thermal energy from the heater core to the knife edge. Brass is the most economical & efficient alloy for this purpose. However, being a relatively soft metal, brass will wear faster than a harder metal such as stainless steel. Stainless steel does not conduct heat as well and must therefore be operated at a higher temperature to do the same work as a brass knife. This uses more energy and may shorten heater life.

RX-84 Hot knife for sling webbing up to 8" / 20cm wide

RX-84-SAM 8" Heavy-duty stainless-steel hot knife

8" (200mm) WIDE HOT KNIVES
 
RX-84-BAM 8" Heavy Duty Hot Knife

 

RX-84-BAM 8" (200mm) Heavy-duty brass  knife knife is ideal for everything from ribbon to slings; also cuts hook and loop, polypropylene and seatbelt webbing, and other synthetic materials.  

RX-84-SAM 8" Heavy Duty SS Hot Knife

RX-84-SAM 8" (200mm) Heavy-duty stainless steel knife knife is suitable for most hot knife applications and materials up to 3/4" (20mm) thick. Ideal for seatbelt, cord, and most webbings. 

 



RX-84-SBM 8" Standard Duty SS Hot Knife

RX-84-SBM 8" (200mm) Standard-duty stainless steel  knife knife is ideal for ribbon, hook and loop, polypropylene webbing, and thin synthetic materials up to 200mm wide. 

SPECIAL LONG ARM MODELS
 
RX-84-S33 Shaped Hot Knife

 

Fit a specially made shaped hot knife to this long-arm model for plenty of workspace and versatility. Use our worksheet to design the shape specifications of the knife. We may also need samples of the material to provide a quote.  



RX-84-PS2 Single Hole Punch

A single-hole hot punch mounted on a long-arm frame for punching and melting holes in the center of large panels, or when extra work area is needed.


RX-84-BHM  & SHM Hot Knife & Single Hole Punch Combo



A versatile, general-purpose combination 7" (175mm) heavy duty brass (BHM) or stainless steel (SHM) hot knife and single hole punch mounted on a long-arm frame that will cut and seal woven and knitted synthetic materials to prevent fraying. It is an ideal cutting machine when occasional hole punching is also required. It uses standard interchangeable heated punch tips for burning holes from 1/8" up to 1/2" diameter.

RX-84 Wide hot knife, hot knife, webbing cutter, nylon cutter

RX-84-BAM 8" Heavy-duty brass hot knife

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Webcutter Hinges

Our hinges are one of the most important components of the Webcutter hot knife. They must allow free movement of the rotating knife without excess play for hundreds of thousands of cycles. These hinges have gone through several design improvements over the years, as shown below. To adjust them, note the video to the right of the hinge type.

Evolution of the Webcutter hinges from 1998 to present: