This band lists the 17 Carrymaster casters rated from 500 to 1,000 lbs per caster: four leveling casters (the AC-300 at 551 lbs and the twin-wheel ACT-800 at 882 lbs) and thirteen non-leveling casters (the ACLHU at 529.11 to 661.39 lbs and the ACMU at 881.85 and 992.08 lbs).
A 1,000 lb load does not always need a 1,000 lb caster: the rating is per caster, and the casters share the load. Our guide to caster wheel load capacity gives a starting estimate of the rating you need. Choose the type first, then check the rating per caster in the table below.
| Models | Type | Rating per caster | Wheel size |
|---|---|---|---|
| ACLHU-100 (RF, SF, SFB) | Non-leveling | 529.11 lbs | 3 to 4 in |
| AC-300F, AC-300S | Leveling | 551.00 lbs | Under 2 in |
| ACLHU-125 (RF, SF, SFB) | Non-leveling | 595.25 lbs | 4 to 5 in |
| ACLHU-150 (RF, SF, SFB) | Non-leveling | 661.39 lbs | Over 5 in |
| ACMU-75 (RF, SF) | Non-leveling | 881.85 lbs | 2 to 3 in |
| ACT-800F, ACT-800S | Leveling, twin wheel | 882.00 lbs | 2 to 3 in |
| ACMU-100 (RF, SF) | Non-leveling | 992.08 lbs | 3 to 4 in |
Ratings are per caster. Zambus doesn't publish a load rating for a set of casters, because how the load is shared depends on the installation, the floor and where the weight sits on the frame. Our guide to caster wheel load capacity gives a starting estimate of the rating you need per caster; confirm your setup with our Casters and Wheels Experts at (973) 777-4922 before you order.
A leveling caster rolls equipment into place and then stands it on a foot; a non-leveling caster stays on its wheels and, on the ACLHU braked models, holds with a brake.
Below 500 lbs per caster, see 300 to 500 lbs. Above 1,000 lbs, the 1,000 to 2,000 lbs band starts with the ACMU-125 at 1,102.31 lbs and the AC-600 leveling caster at 1,103 lbs. For the full range, see load capacity, or call our Casters and Wheels Experts at (973) 777-4922.
A. 17 casters: the ACLHU-100 (529.11 lbs), ACLHU-125 (595.25 lbs) and ACLHU-150 (661.39 lbs), the ACMU-75 (881.85 lbs) and ACMU-100 (992.08 lbs) non-leveling casters, and the AC-300 (551 lbs) and ACT-800 (882 lbs) leveling casters.
Four of the 17 are leveling casters and thirteen are non-leveling.
A. Not always. The rating is per caster, and the casters share the load, so the rating you need per caster is usually below the total weight. How far below depends on the installation, the floor and where the weight sits, which is why Zambus publishes a rating per caster and no rating for a set.
Our guide to caster wheel load capacity gives a starting estimate of the rating you need per caster, and our Casters and Wheels Experts at (973) 777-4922 can confirm it for your setup.
A. Start from the rating per caster: this band runs from 529.11 lbs (ACLHU-100) to 992.08 lbs (ACMU-100). If the machine must stand level once parked, the AC-300 and ACT-800 are the leveling options. Zambus doesn't publish a load rating for a set of casters, because how the load is shared depends on the installation, the floor and where the weight sits on the frame.
Our guide to caster wheel load capacity gives a starting estimate of the rating you need per caster, and our Casters and Wheels Experts at (973) 777-4922 can confirm it for your setup.
A. No. The highest rating in this band is 992.08 lbs (ACMU-100), which converts exactly from 450 kg.
The next ratings up are 1,102.31 lbs (500 kg) on the ACMU-125 and 1,103 lbs on the AC-600 leveling caster, both in the 1,000 to 2,000 lbs band.
A. Carrymaster labels these casters by duty in their product names: the AC-300 is light and medium duty, and the ACT-800, ACLHU and ACMU are medium duty. What matters for your equipment is the rating per caster, 529.11 to 992.08 lbs in this band.
For higher ratings, see the 1,000 to 2,000 lbs and over 2,000 lbs bands.
A. Choose by the rating you need first: the ACLHU covers 529.11 to 661.39 lbs and offers braked versions, while the ACMU in this band is rated 881.85 or 992.08 lbs and has no braked version. The ACLHU wheel has a polycarbonate core; the ACMU wheel has an aluminum core.
The ACMU product pages list semiconductor equipment, electronic parts production, laboratory, chemical equipment and medical devices as applications. Note that the smaller ACMU-75 is rated higher than the largest ACLHU-150, so wheel size alone does not tell you the rating.
A. Three: the ACLHU-100SFB, ACLHU-125SFB and ACLHU-150SFB. Their product pages say the brake locks the top plate and the wheel at the same time.
The ACMU casters in this band have no braked version, and the AC-300 and ACT-800 leveling casters are held in place by lowering their feet.
A. Two leveling casters: the AC-300S with an M12 x 1.75 mm stem and the ACT-800S with an M16 x 2.00 mm stem. Every non-leveling caster in this band is flange mount.
Check the thread on the product page drawing against your equipment. Our guide to stem vs flange casters covers the trade-offs.
A. Five: the ACLHU-100RF, ACLHU-125RF and ACLHU-150RF, and the ACMU-75RF and ACMU-100RF, each rated the same as the swivel model of the same size.
For how many rigid and swivel casters to use, read our guide to swivel vs rigid casters.
A. Under 2 inches (AC-300), 2 to 3 inches (ACT-800 and ACMU-75), 3 to 4 inches (ACLHU-100 and ACMU-100), 4 to 5 inches (ACLHU-125) and over 5 inches (ACLHU-150).
See wheel size to browse by diameter.