Specialty Casters
Gate Casters
BBQ Pit & Smoker Casters
Keyed Drive Wheels
Drywall Cart Casters
Skid Wheels & Casters for RVs
Leveling Casters
Shopping Cart Wheels & Casters
Band Equipment Casters & Wheels
Low Profile Casters
Cart Wheels & Casters
Toolbox Caster Sets
Bakery Oven Rack Casters
Kitchen Prep Table Caster Sets
Wire Shelving Casters
Silent Glide Casters
Fabrication and welding-shop casters for bolt-on plate mounts, weld-on pads and shims, V-groove track guidance, kingpinless shock-load duty, and floor locks. Pick the mount and duty path below — then confirm capacity and plate size on the product page. This hub is for welding-shop / fab-floor applications, not retail fixture display, shopping carts, or powder-oven heat duty.
Which fabrication / welding-shop path are you on?
Mount type and floor duty drive the right assortment. Pick weld-on pad, bolt-on plate, V-groove track, kingpinless shock-load, or floor lock — then confirm capacity and dimensions on the product page.
Weld-on caster pads and shims for fab tables, carts, and fixtures where you want a permanent plate dock. Match pad size to your caster top plate before welding.
Bolt-on plate mounts for welding-shop carts and fixtures. Start in this fabrication hub, or browse the broader plate-caster catalog when you need more sizes.
V-groove wheels and track casters for carts that must stay on a fixed path. Confirm groove and track size on the product page.
Kingpinless raceways for shock and side-load duty common on shop floors. Confirm capacity and plate size on the product page.
Floor truck locks and hardware to secure carts during weld, fab, or assembly. Pair with the casters above — locks are not a substitute for load rating.
Also useful on fab floors: Metal / steel wheels · Heavy-duty casters · Heavy-duty hub
Need a fabrication / welding-shop quote?
Tell us mount type (weld-on pad vs bolt-on plate), load per caster, floor (smooth / debris / track), shock duty, plate or pad size, and ship ZIP. Qualified accounts can request Net 30 (fee 0 policy) instead of card checkout (about 3–4% processing). Net30 is not unlimited credit — Accounting approval applies.
Request a fabrication quote →
or call 844-439-4335 (Mon–Fri 8AM–5PM CST) · info@casterhq.com
Fabrication shop casters are steel-core casters rated 1,000 to 2,500 lb each, mounted on a 4″ x 4-1/2″ or 4-1/2″ x 6-1/4″ top plate so they bolt to weld-on caster pads instead of being welded to the cart. CasterHQ stocks the exact configurations metal fabricators, machine shops and steel service centers reorder: 5″ x 2″ and 6″ x 2″ polyurethane-on-iron, 5″ and 8″ semi-steel, 6″ x 3″ ductile steel, weldable caster pads and shims, and Hamilton forged steel wheels to 16,000 lb. Card checkout, no PO required, same-day shipping from Mansfield, Texas.
Weld carts and fixture tables in this collection roll on 5″ x 2″ or 6″ x 2″ polyurethane-on-iron casters rated 1,100 to 1,200 lb, or 5″ and 8″ x 2″ semi-steel casters rated 1,000 to 1,250 lb, all on a 4″ x 4-1/2″ top plate. That plate matches CasterHQ weldable caster pads: a bolt-on mount, not a welded caster.
Sheet metal shops on this page reorder the 5″ x 2″ poly-on-iron swivel 80 at a time; conveyor and aggregate equipment builders take the 5″ x 2″ semi-steel in matched swivel and rigid pairs. Both share the 4″ x 4-1/2″ bolt pattern, so a cart can change wheel material without new pads.
Casters in this collection carry 1,000 to 2,500 lb each. Size a 4-caster cart with the N-1 rule: total weight divided by 3, times 1.25. A 3,000 lb fixture table needs casters rated 1,250 lb or more: the 6″ x 2″ poly-on-iron (1,200 lb) is the floor, the 6″ x 3″ ductile steel (2,500 lb) covers off-center loads.
Rated capacity is per-caster at ideal conditions. For carts and dollies, apply a 33% safety derate to account for uneven floors. Hamilton forged steel and V-groove wheels cover the 10,000 to 16,000 lb die cart and track applications above this range.
Weld the pad, bolt the caster. Welding directly to a caster plate anneals the zinc plating, can warp the swivel raceway, and a damaged caster then has to be cut off. A 4″ x 4-1/2″ weldable pad or quick-change dock takes the weld once; the caster swaps in minutes. Fab shops order pads 20 to 210 at a time.
Quick-change docks let one set of casters move between fixtures. Weld-on top plate shims (2-3/8″ x 3-5/8″ and 4″ x 4-1/2″) correct height when one corner sits proud after welding. See weld-on pads, docks and shims.
Semi-steel (gray iron) wheels for bare broom-finish concrete with weld spatter, chips and hot slag: nothing embeds in the tread, and capacity runs 1,000 to 1,250 lb at 5″ and 8″. Polyurethane-on-iron for sealed or epoxy floors and assembly areas: 1,100 to 1,200 lb, quieter, no chipped slab. Spatter above roughly 180°F pits a poly tread.
Semi-steel is the loudest option and marks soft floors. Ductile steel steps capacity to 2,500 lb per caster at 6″ x 3″ and takes impact that cracks gray iron. Polyurethane-on-steel at 8″ x 3″ and 12″ x 3″ gives 2,500 lb with floor protection.
Move to the 4-1/2″ x 6-1/4″ top plate. The 6″ x 3″ red ductile steel rigid, the 8″ x 3″ polyurethane-on-steel swivel and rigid, and the 12″ x 3″ polyurethane-on-steel, all 2,500 lb, are what aggregate and steel service shops buy for weldments over 2,000 lb. Above that, Hamilton forged steel wheels carry 10,000 to 16,000 lb.
Rigid casters at the load end and swivels at the push end keep a heavy cart tracking straight. Add a kick-bar floor lock so the cart cannot walk while you weld on it.
| Specification | Value |
|---|---|
| Wheel Diameter | 4″ to 12″ |
| Load Capacity | Up to 2,500 lb per caster; wheels to 16,000 lb |
| Wheel Materials | Polyurethane-on-iron, semi-steel, ductile steel, poly-on-steel, poly-on-aluminum, forged steel |
| Tread Width | 2″ to 3″ |
| Mount Types | 4″ x 4-1/2″ top plate, 4-1/2″ x 6-1/4″ top plate, weld-on pads, quick-change docks |
| Bearing Type | Roller, precision ball |
| Brake Options | Top lock, total lock, kick-bar floor lock |
| Finish | Zinc plated rig, unplated weld-on pads |
| Feature | Semi-Steel | Polyurethane-on-Iron |
|---|---|---|
| Load per caster (5″ to 8″) | 1,000 to 1,250 lb | 1,100 to 1,200 lb |
| Weld spatter & chips | Immune | Pits above ~180°F |
| Floor protection | Marks and chips concrete | Protects sealed floors |
| Noise | Loud | Moderate |
| Push force | Lowest | Low |
| Best for | Bare concrete weld bays | Assembly and epoxy floors |
Engineer Tip: 4 Fab Shop Caster Mistakes We See Weekly
Based on CasterHQ engineering field data from fabrication, machine shop and steel service center installations.
Every caster in this collection was ordered by a fabrication, machine shop, steel service or equipment-builder customer in the last 12 months, in quantity, through card checkout. We rank the collection by what those shops reorder, verify dynamic load ratings against the ICWM performance standard for casters and wheels, and stock every SKU in Mansfield, Texas.
Continue your build · related caster collections
