Browse all 138 Carrymaster casters by their load rating per caster, in seven bands from under 100 lbs to over 2,000 lbs. Each band lists every caster rated in that range, whether it is a leveling, non-leveling or medical plastic caster, so you can compare series side by side.
Ratings run from 33.07 lbs (ACSU-40) to 3,307 lbs (AC-1800F) per caster. Before you pick a band, work out the load each caster really has to carry: dividing the total weight by the number of casters undersizes them, as our guide to caster wheel load capacity explains.
| Load band | Casters | Ratings in the band | Series |
|---|---|---|---|
| Under 100 lbs | 27 | 33.07 to 88.18 lbs | ACSU |
| 100 to 200 lbs | 16 | 110 to 198.42 lbs | AC-50, ACMC-76, ACMCH, ACMCT-76 and 102 |
| 200 to 300 lbs | 31 | 220.46 to 297.62 lbs | ACLU, ACMC-102 and 127, ACMCT-127 |
| 300 to 500 lbs | 16 | 352.74 to 485.02 lbs | ACLMU, ACP, ACT-400, ACTM, APLC-200F |
| 500 to 1,000 lbs | 17 | 529.11 to 992.08 lbs | ACLHU, ACMU-75 and 100, AC-300, ACT-800 |
| 1,000 to 2,000 lbs | 23 | 1,102.31 to 1,764 lbs | AC-600, AC-1000, ACMU-125 and 150, ACMM, ACM-600, ACMT-600F, APLC-700F |
| Over 2,000 lbs | 8 | 2,205 to 3,307 lbs | AC-1300, AC-1800F, ALC-1000FB, ALCT-1000F, ACM-800, ACMT-800F |
Every rating is per caster, not per set. Within a series, the swivel, rigid and braked versions of a size carry the same rating, so they sit in the same band.
Our guide to caster wheel load capacity uses this formula:
Required capacity per caster = (total supported weight / effective caster count) x safety factor
The guide's worked example is a 500 lb mobile workbench moved often indoors: (500 / 3) x 1.5 = 250 lb required per caster, which points to the 200 to 300 lbs band.
The formula gives a starting estimate, not a rating for your setup. Zambus publishes load ratings per caster only, because how a set of casters shares the load depends on the installation, the floor and where the weight sits. Confirm your setup with our Casters and Wheels Experts at (973) 777-4922 before you order.
Once you know the band, choose by type: leveling for equipment that must stand level and still, non-leveling for equipment that moves often, or medical plastic for hospital beds, medical devices and light carts. You can also browse by wheel size. For help sizing, call our Casters and Wheels Experts at (973) 777-4922.
A. 31 of the 138 casters, in the 1,000 to 2,000 lbs and over 2,000 lbs bands: the AC-600, AC-1000, AC-1300 and AC-1800F, ALC-1000FB, ALCT-1000F and APLC-700F leveling casters, and the ACMU-125 and 150, ACMM, ACM and ACMT non-leveling casters.
The highest is the AC-1800F at 3,307 lbs per caster.
A. No. The closest ratings are the ACMU-100 at 992.08 lbs, just under, and the AC-600 at 1,103 lbs and ACMU-125 at 1,102.31 lbs, just over.
Many Carrymaster ratings convert exactly from round kilogram figures, for example 992.08 lbs is 450 kg and 1,102.31 lbs is 500 kg, which is why they are not round numbers in pounds.
A. 17 casters in the 500 to 1,000 lbs band: the ACLHU series (529.11 to 661.39 lbs), the ACMU-75 and ACMU-100 (881.85 and 992.08 lbs), the AC-300 leveling caster (551 lbs) and the ACT-800 leveling caster (882 lbs).
Check the type before you order: the band mixes leveling and non-leveling casters.
A. The bands are set by the load rating per caster only. A caster appears in the band its rating falls into, whatever its type, mount or wheel.
So after choosing a band, check that the caster is the right type: a leveling caster stands on a foot once parked, a non-leveling caster rolls on its wheels, and a medical plastic caster is built for hospital beds, medical devices and light carts.
A. No. The bands list the 138 Carrymaster casters only. Replacement wheels and the M12/M16 stem adapter are in Wheels and Parts.
Replacement wheels do not carry their own load rating; the rating belongs to the complete caster.
A. All seven: 9 braked casters under 100 lbs, 7 at 100 to 200 lbs, 14 at 200 to 300 lbs, 3 at 300 to 500 lbs, 3 at 500 to 1,000 lbs, 4 at 1,000 to 2,000 lbs and 2 over 2,000 lbs.
A trailing B in the model number marks the braked version, which carries the same rating as the unbraked one.
A. All seven, though most stems are in the lighter bands: 14 under 100 lbs, 7 at 100 to 200 lbs and 16 at 200 to 300 lbs, then 2 in each band from 300 to 2,000 lbs and 1 over 2,000 lbs, the AC-1300S.
Above 300 lbs, most casters are flange mount. Our guide to stem vs flange casters covers the trade-offs.
A. Five: under 100 lbs (ACSU), 200 to 300 lbs (ACLU), 300 to 500 lbs (ACLMU and ACTM), 500 to 1,000 lbs (ACLHU and ACMU) and 1,000 to 2,000 lbs (ACMU and ACMM).
The 100 to 200 lbs and over 2,000 lbs bands have no rigid models. The highest-rated rigid caster is the ACMM-150RF at 1,763.70 lbs.
A. The ACSU-40, rated 33.07 lbs per caster, in rigid flange, swivel flange and stem versions. It is in the under 100 lbs band with the rest of the ACSU series.
For light equipment that still needs a brake, the ACSU braked models start at 66.14 lbs (ACSU-64).
A. Choose a caster whose rating meets or exceeds the required capacity per caster from the formula above, which already includes a safety factor. If your result sits close to the top of a band, the lowest rating in the next band up gives more margin.
Our guide to caster wheel load capacity lists the conditions that call for a higher safety factor, such as rough floors, thresholds and towing.