Total locking casters combine a wheel brake and swivel lock in one mechanism — press the lever and the wheel stops rotating while the caster stops swiveling. Used on hospital equipment, AV carts, prep tables, lab benches, and any equipment that must stay in place. 111 models stocked at our Mansfield, TX facility in foot-pedal and weight-activated designs.
A side-by-side breakdown of every total locking caster configuration we stock. Compare wheel size, mount type, capacity, lock mechanism, and best-fit application.
| Configuration | Mount | Wheel | Capacity | Best Use |
|---|---|---|---|---|
| 3" Total Lock Swivel | Plate (2-3/8 x 3-5/8) or Stem | 3" x 1.25" Polyurethane / TPR | 180 to 300 lb | Medical equipment, AV carts, food prep, lab |
| 3" Total Lock Set of 4 | Plate | 3" x 1.25" TPR Rubber | 720 lb total set | Hospital carts, complete soft-floor build |
| 4" Total Lock Stem | 1/2-13 x 1-1/2" Threaded Stem | 4" x 1.25" Polyurethane | 300 lb each | Service carts, light industrial, AV racks |
| 4" Total Lock Stem Set of 4 | 1/2-13 Threaded Stem | 4" x 1.25" Polyurethane | 1,200 lb total set | Complete light-duty cart build |
| 5" Total Lock Stem | 1/2-13 x 1-1/2" Threaded Stem | 5" x 1.25" Polyurethane | 350 lb each | General use, hospital, prep tables |
| 5" Total Lock Stem Set of 4 | 1/2-13 Threaded Stem | 5" x 1.25" Polyurethane | 1,400 lb total set | Complete medium-duty cart build |
| 5" Heavy-Duty Plate Total Lock | Plate (4 x 4-1/2) | 5" x 2" Polyurethane on Iron | 1,100 lb each · 4,400 lb set | Heavy industrial, manufacturing fixtures |
| 6" Red Poly Total Lock Set | Plate | 6" x 2" Red Poly on Steel | 1,200 lb each · 4,800 lb set | Heavy-duty material handling carts |
| Weight-Activated Lock | Specialty plate & stem | 3-5" varies | 200 to 300 lb | Self-locking when loaded (lab equipment) |
A top lock (sometimes called a wheel brake) only stops the wheel from rotating. The caster can still swivel, which means the equipment can rotate in place even when "locked." A total lock stops the wheel and the swivel at the same time — the equipment cannot move or rotate. Total locking is required on any cart where the equipment must hold its exact position: hospital beds, AV racks, prep tables, lab benches, dental chairs, dialysis machines.
Standard total locking casters use a foot pedal — press down to engage the wheel + swivel lock, press up (or the opposite pedal) to release. Reliable, manual, every CasterHQ total lock model uses this design. Weight-activated locks are a specialty mechanism that engages when the cart is loaded above a threshold weight, used on lab carts and self-locking medical equipment. We rank well for both terms; if you need weight-activated, contact us directly for spec match.
Most service carts and medical equipment use threaded stem total lock casters — usually a 1/2-13 x 1-1/2" stem that screws directly into the cart leg. Heavier equipment (industrial fixtures, manufacturing carts) uses plate-mount total lock casters with a bolted 4 x 4-1/2" plate. Mount choice is dictated by your cart frame — if there's already a threaded socket, get a stem. If there's a flat mounting surface, get a plate.
Default for hospital, food prep, and industrial: polyurethane on iron or aluminum hub. Quiet rolling, non-marking, high capacity. For soft floors and noise-sensitive environments (operating rooms, libraries): TPR rubber. For heavy machinery on warehouse concrete: red polyurethane on steel (the 6" set in this collection). Match the wheel material to where the cart actually lives.
Need help spec'ing a total lock caster fleet for hospital, manufacturing, or AV equipment? Contact CasterHQ Engineering for direct application support.
Our walkthrough explains exactly how the total lock mechanism works, what makes it different from a standard top-lock brake, and where each design is appropriate. Filmed at our Mansfield, TX warehouse.
Prefer YouTube? Open the full video on the CasterHQ YouTube channel. Companion video: Total Locking vs Top Locking Brake Casters.
CasterHQ stocks the full range of total lock configurations — 111 SKUs across 3" to 6" wheel diameters, stem and plate mounts, polyurethane / TPR rubber / iron / steel hub options — at our Mansfield, TX facility. Every total lock caster ships from inventory; 99 percent of orders ship same or next business day. Lock mechanisms are engineering-reviewed for cycle life and tested to engage and release without floor contact damage. We do not relabel imported lock-mechanism casters as CasterHQ-spec.
A total locking caster locks both the wheel and the swivel mechanism at the same time with a single foot-pedal action. The wheel stops rotating, and the caster body stops swiveling. The equipment cannot move forward, backward, or pivot in place. This is the strongest brake configuration on any caster.
A top lock (or wheel brake) only stops the wheel from rotating — the caster can still swivel, so the equipment can rotate around its own axis. A total lock stops both the wheel and the swivel. Total lock is required wherever the equipment must hold its exact orientation: hospital beds, AV racks, prep tables, lab benches.
Yes for the applications they're designed for — lab equipment, self-locking medical carts, and equipment that must lock automatically when loaded. They engage when the cart sees load above a threshold and release when unloaded. They are not a substitute for a foot-pedal total lock on heavy or active-use carts. We stock both styles.
Yes, as long as the mount type matches. If your existing caster is a 1/2-13 threaded stem, replace with a 1/2-13 stem total lock. If it's a 4 x 4-1/2 plate, replace with a 4 x 4-1/2 plate total lock. The bolt pattern, stem length, and overall mount height should match within 1/8 inch to avoid lift differences across casters.
The common stem on industrial total lock casters is 1/2-13 thread by 1-1/2 inches long. Some lighter total lock models use 3/8-16 stems. Confirm your existing stem before ordering — thread mismatch will not seat correctly, and stem length controls overall mount height.
Yes — we stock plate-mount total locks in 2-3/8 x 3-5/8, 4 x 4-1/2, and several other industrial plate sizes. Plate-mount is the configuration of choice for manufacturing fixtures and heavy equipment carts. Browse the comparison table above for the exact plate dimensions per SKU.
Per-caster capacity ranges from 180 lb (3" TPR rubber on hospital carts) up to 1,200 lb (6" red polyurethane on steel for heavy industrial). A 4-caster set carries 4x the per-caster rating, so total sets range from 720 lb to 4,800 lb total capacity.
Total locking casters are designed primarily for indoor use on smooth or semi-smooth floors — hospital, lab, industrial, retail. Polyurethane and TPR rubber wheels handle indoor floors well. For outdoor and rough-terrain applications, the locking mechanism still works but exposure to dirt, debris, and moisture will shorten lock cycle life.
The wheel itself wears at the same rate as a non-locking caster of the same material. The lock mechanism is a separate wear point and is rated for thousands of engagement cycles before service. Most commercial users get 3 to 7 years of service depending on lock-engagement frequency. Replace the whole caster when the lock fails to engage cleanly.
99 percent of total lock caster orders ship same or next business day from our Mansfield, TX facility via FedEx Ground. Single SKUs and 4-piece sets ship Ground. Pallet quantities over 100 casters ship freight (24 to 48 hour transit to most U.S. metros). Order before 2pm Central for same-day cutoff.
