Category 06 - Heavy Duty Casters
Acorn™ is known as the Caster and Wheel Experts for U.S. and EURO standards. We design the best casters and wheels to meet every load requirement and application from Categories 1-10.

Acorn™ Category 06 PDF
Click here to download Acorn's Category 06 PDF

6A (Albion) Series Casters
6D (Darnell/Darcor) Series Casters
6M (Muvtons) Series Casters
6R (RWM) Series Casters
6SS (Stainless Steel) Series Casters


Selection of Albion Casters

Albion Series 81 / Kingpin / Hot Forged / Heavy Duty Caster 6A-81 Albion Series
Kingpin / Hot Forged / Heavy Duty Caster

Load Capacity Up to 2000 lbs.
• Top Plate: AISI 1045 Drop forged steel for maximum strength
Swivel Section: Double ball bearing coined “deep-groove” load and machined component thrust raceways
Legs: 3/8" steel, engineered to increase strength and welded construction
King Bolt: 3/4" diameter heat treated bolt and nut for enhanced load capacity
Axle: 3/4" diameter, hollow, with lock nut
• Zerk fitting in swivel section and in recessed head of hollow axle
• Alternate or custom caster configurations available
Download 6A-81 Albion Series PDF
Download Albion Parts & Accessories Catalog

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Albion 300 Shockmaster Caster 6A-300 Albion Series
Shockmaster™ Kingpinless Casters

Load Capacity Up to 4100 lbs.
Top Plate: 5/16" AISI 1045 steel one-piece forging precisoin machined and through-hardened for long life
Swivel Section: 1/2" ball bearings mounted in a 3" precision machined raceway. Zerk in swivel section.
Legs: 3/8" thick steel welded to yoke base using 100,000 psi weld filler, welded inside and out for added strength
Axle: 3/4” diameter
• Alternate or custom caster configurations available
Download 6A-300 Albion Shockmaster PDF
Download Albion Parts & Accessories Catalog

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Albion 310 Series Condender Caster 6A-310 Albion Series
Contender™ Kingpinless Casters

Load Capacity Up to 4100 lbs.
Top Plate: 5/16" AISI 1045 heat treated steel welded inside and out for longer life
Swivel Section: One row of 1/2" ball bearings mounted in a heat treated precision machined raceway. Zerk in swivel section.
Yoke Base: Notched AISI 1045 steel
Legs: welded inside and out
Axle: 3/4” diameter
Finish: Zinc plating
• Alternate or custom caster configurations available
Download 6A-310 Albion Contender PDF
Download Albion Parts & Accessories Catalog

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Selection of Darnell Casters
Darnell Series R600 Caster 6D-R600 Darnell Series
Heavy Duty Forged Steel Caster

Load Capacity Up to 3000 lbs.
Integrally Forged Kingpin: Solid 1" king pin is integrally forged with upper raceway using SAE-1050 quality grade steel. Used with a slotted nut to allow for proper bearing adjustment whenever necessary. Designed to be virtually indestructible!
Hot-Forged Steel Construction: Top plate, yoke base and bearing retainer are hot forged using SAE-1050 hardening quality steel. Raceways are precision machined for 3/8" hardened chrome steel load bearings and tapered thrust bearing.
Flame-Hardened Swivel Raceway: All bearing raceways are flame hardened to extend service life, reduce brinelling from shock loads, and to generally improve swivel performance.
Continuously Welded Fork Legs: Side forks are made of 3/8" thick steel plate and are continuously welded on both sides for added strength.
Locked Wheel Axle: Steel axle bolt is locked in position with indexing lance in side fork to prevent unwanted movement.
Download 6D-R600 Darnell Series PDF

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Darnell Caster Series R695 6D-R695 Darnell Series
Forged Steel Body / Dolly Caster

Load Capacity Up to 3000 lbs.
Special King Bolt Assembly: Utilizes a special SAE-8640 hardened steel king bolt to meet the severe and rugged demands of automotive line assembly. Used with a slotted nut to allow for proper bearing adjustment whenever necessary.
Hot Forged Steel Construction: Top plate, yoke base and bearing retainer are hot forged using SAE-1050 hardening quality steel. Raceways are precision machined for 1/2" hardened chrome steel load bearings and tapered thrust bearing.
Completely Heat-Treated: All metal parts, including wheel, axle bolt and nut, are heat-treated to a specific molecular depth and Rockwell hardness.
Embossed and Welded Fork Legs: Side forks are embossed and continuously welded on both sides for added strength.
Optional Wheel Bearings: Drop forged wheel is offered with either straight or tapered roller bearings. Metal seal is also available with straight roller bearing.
Download 6D-R695 Darnell Series PDF

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Darcor 900 Series Caster 6D-900 Darcor Series
Load Capacity 700-3500 lbs.
• 3/4" Axle
• 7/8" Grade 8 King bolt
• 4" Diameter upper raceway, 1/2" balls
• 5/8" Thick swivel head, precision machined and
equipped with tapered roller bearings
• Ribbed legs for extra strength
• Grease fittings in swivel and wheel
• Bright zinc finish
• All swivel parts case hardened to Rockwell 62C
Download 6D-900 Darcor Series PDF

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Selection of Muvtons Casters

-6-81HD Series Kingpin HD / Hot Forged / Total Lock Caster 6M-U25 Muvtons Series
Integral Kingpin Type Forged Casters

Load Capacity Up to 2500 lbs.
Top Plate: Single piece forged alloy steel
Kingpin: Integrally forged
Fork: Forged alloy steel fork base
Precision raceways: CNC machined 3-1/4" diameter with 7/16" diameter balls
Secondary load bearing: 3/4" bore tapered roller bearing for superior swiveling
• Integrally forged 3/4" diameter kingpin UNF threaded with slotted nut arrangement
• 5/16" x 2-1/2" legs with 2-1/2 in. fork spacing
• 3/4" wheel axle
Finish: Bright zinc plated or polymer painted (black)
• Optional 4-position directional lock slots and hardened raceways
Download 6-M-U25 Muvtons Series PDF

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Muvtons Caster GRDU 6M-GRDU Muvtons Series
Kingpinless / Hot Forged / Adjustable Total Lock

Load Capacity Up to 4000 lbs.
Top Plate: Single piece Drop Forged AISI 1045 Steel Top Plate and Fork Base
Precision CNC Machined Raceways: 3" dia with 1/2" ball bearings
• Induction Hardening of Raceways ensures uniform depth of hardness
• Totally Sealed Swivel Head with Grease Nipple
• 5/16" Thick x 2-1/2" wide fork legs robotically welded Inside and Outside to 3-1/2" fork spacing
• 3/4" Wheel Axle
• 4 Position Directional Lock Slots
Finish: Bright Zinc Plated
Download 6M-GRDU Caster PDF
Muvtons Improved Total Lock

Product Development: Improved Total Lock
• Improved positive locking of the swivel and wheel movement
• Anty-skid brake pedal prevent injury to the operator's foot
• Elastomer coated brake pad protects the wheel surface while braking

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Selection of RWM Casters
RWM Caster Series 75 6R-75 RWM Series
Kingpinless Caster

Load Capacity Up to 6000 lbs.
Industrial casters with a Kingpinless design. Recommended for the most demanding heavy duty industrial caster applications and is available with up to 3" wheels for higher capacity applications. All swivel sections are supplied with a lubrication fitting for field maintenance. Case hardened to provide an extended service life. Made in the U.S.A.
Raceway Design: Patented Kingpinless™ single ball bearing precision machined raceway hardened to 53 Rockwell C minimum. Swivel section features 3" diameter raceway with 1/2" ball bearings. The notched raceway is standard.
Leg Thickness:5/16" formed steel
Axle: 3/4" bolt with lock or slotted nut as required
Finish: Laguna Blue paint
Wheels: Wheels are available with either a 1" roller bearing which rotates on a hardened and ground spanner bushing or 3/4" tapered bearings that rotate on the axle. All wheels are equipped with a lubrication fitting.
Mounting Plate Size: 4-1/2" x 6-1/2" x 5/16"
Bolt Hole Spacing: 2-7/16" x 4--15/16", slotted to 3-3/8" x 5-1/4"
Mounting Bolt Diameter: 1/2"
Download 6R-75 RWM Series PDF

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RWM 2-75 Series Caster 6R-2-75 RWM Series
Kingpinless / Dual Wheel Casters

Load Capacity Up to 6000 lbs.
Raceway Design: Patented Kingpinless™ single ball bearing precision machined raceway hardened to 53 Rockwell C minimum. Swivel section features a 3” diameter raceway with 1/2” ball bearings. The notched yoke is standard.
Axle: 1/2” bolt, locking nut and lubrication fittings
Finish: Laguna Blue paint
Wheels: All wheels are 2” wide with 3/4” I.D. roller bearings that are prelubricated and rotate on individual spanner bushings or annular ball bearings for ease of rollability.
Mounting Plate Size: 4-1/2” x 6-1/2” x 5/16”
Bolt Hole Spacing: 2-7/16” x 4-15/16”, slotted to 3-3/8” x 5-1/4”
Mounting Bolt Diameter: 1/2”
Leg Thickness: 5/16” formed steel. Center leg support is added for increased strength.
Download 6R-2-75 RWM Series PDF

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Stainless Steel Casters
RWM S75 Stainless Steel Caster 6R-S75 RWM Series
Stainless Steel Kingpinless Caster

Load Capacity Up to 2500 lbs.
Raceway Design - Kingpinless single ball bearing precision machined raceway. 3" diameter raceway with 1/2" stainless ball bearings.
Leg Thickness: 1/4"
Mounting Plate Size: 4-1/2” x 6-1/2” x 1/4” Mounting Bolt Diameter - 1/2"
Bolt Hole Spacing: 2-7/16” x 4-15/16” slotted to 3-3/8” x 5-1/4”
Download 6R-S75 RWM Series PDF

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U.S. Caster Industry
Categories 1-10


Category 01
Light Duty

Category 02

Light Duty

Category 03
Medium Duty

Category 04
Medium Duty

Category 05
Heavy Duty

Category 06
Heavy Duty

Category 07
Heavy Duty

Category 08
Extra Heavy Duty

Category 09
Extra Heavy Duty

Category 10
Extra Heavy Duty


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Acorn Industrial Products Co  |  520 Hertzog Boulevard  |  King of Prussia, PA 19406
Phone 800-523-5474  |  Fax 800-782-6780  |  E-Mail acorn@acornindprod.com