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  1. Home
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  3. Kingpinless Casters
  4. Kingpinless Super Duty
  5. Maxi-Duty-Dual Wheel Kingpinless Casters
Series ZFMDD

Spinfinity® Maxi-Duty Casters w/ Dual Press-On Wheels

Capacity Range: 2800 – 15,600 lbs.

 

This Spinfinity® Maxi-Duty Dual Wheel Caster Series is a new kingpinless caster machined from heavy 1045 forgings installed with dual TerraTech™ wheels with press-on tires designed for applications moving extra heavy loads at speeds up to 10 mph. The dual wheels provide much more load capacity for the (2) press-on rubber types. For all wheel offerings, the dual-wheel style adds stability and allows for a lower overall height. This series matches the same 8-1/2" x 8-1/2" mounting plate as our original Maxi-Duty but that's where the similarity ends.

The heavy duty wheels are mounted in an all-new kingpinless caster rig. The top plate and inner raceway are forged steel formed from one piece, providing a superior raceway for shock conditions. Engineers also added a new heavy duty "V-Style" seal for the swivel raceway. Engineers then enhanced the caster series with thicker legs, larger axles, and massive double stacked precision ball bearings in the wheels to accommodate the higher speeds. The sealed swivel raceway combined with the sealed precision ball bearings qualify this series, like all Spinfinity® Series, to be 100% maintenance-free.

To help with wheel selection, the black rubber will provide the most cushion and is best suited for outdoors but has much lower capacity compared to the poly offerings. Among the (2) polyurethane choices, select the standard TerraTech™ (red tread) for general purpose indoor use with the occasional outdoor use. If the application is primarily outdoors or requires continuous-duty (24/7) use at high speeds, the TerraTech™ ULTRA (green tread) will be your best choice. Note: All wheels with diameters greater than 18" will have black tread. Check out our TerraTech Wheel outdoor testing.

For pricing of Hamilton's new Spinfinity® Maxi-Duty Dual Wheel Series, consult factory. Additional non-stock sizes are also available, consult factory.

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Spinfinity-MaxiDuty-Dual Wheel-Swivel-Caster

Quality Features & Specs

  • Swivel Construction

    Best of Breed Kingpinless - forged steel top plate and fork base; 1/2" x 5" precision laser cut steel legs welded inside and outside to forged steel horn base.

  • Load Bearing 

    7" diameter CNC-machined and hardened raceway with 5/8" balls.

  • Product Finish

    Powder Coated - Caster rigs are powder coated with Hamilton’s new Platinum Powder, a metallic HAA Polyester providing a premium look and excellent durability for both interior and exterior environments.

  • Sealed Swivel Construction

    The forged ring is cnc-machined with a precision groove to accept a large seal made from Nitrile butadiene rubber(NBR) designed to keep grease in and contaminants out.

  • Axle

    1 1/4", 1 1/2" or 2" diameter grade 5 hex head with slotted nut and cotter pin.

Wheel Choices

TerraTech Black Rubber

TerraTech Standard

TerraTech Ultra

Optional Accessories

  • Brakes

    Keep safety managers happy with a heavy duty face contact brake (-DHCB). Select desired caster from selection table to see brake details.

  • Swivel Lock

    4 Position (★-4SL-MD) - convert swivel to rigid for straight line steering, robotically welded housing & CNC-milled slots assure long lasting, trouble-free performance.

  • Non-Marking Gray Rubber

    For indoor applications that require floor protection, a non-marking gray rubber is available (similar load ratings to black rubber).

  • Extra Tough Poly Tread

    For outdoor applications that run over gravel or incredibly rough terrain, ask for optional TerraTech MAX poly material.

  • Toe Guard

    Toe Guards help protect workers’ feet and can be used for both manual and power applications.

  • Custom Engineering

    Hamilton engineers will custom design any caster to meet customer requirements. See Custom Gallery

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Manufactured Lean in the USA Since 1907

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