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.
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Download RX-84 Long-Arm Hot Knife and Wide Hot Knife brochure.
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Some common model configurations include:
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.
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RX-84-SBL 5" Standard Duty SS Hot Knife
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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?
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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.
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MATERIALS NOTICE: Most of these machines use thermal tooling made of brass alloy and cannot be used with materials that contain any halogen compounds, such as PVC and neoprene, for example. Please contact us for alternate tooling options. Materials that contain any fluoride compounds should not be cut thermally on any models.
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.
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RX-84-SAM 8" Heavy Duty SS Hot Knife
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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
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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
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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-PS2-RK Single hole thermal punch on long-arm frame
SUPPLEMENTAL SAFETY GUARDS
For RX-84 5" and 8" Models:
Stainless steel supplemental safety guards may be added to any of these models to prevent accidental contact with the knife. Material to be cut is easily inserted under the guard while still providing adequate viewing of the work area when cutting.
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NOVA TECH International, LLC • Graham, North Carolina USA • 336-513-5200 • 800-794-6682 • FAX 336-513-5213 • email
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