4/5/6/8 Inch SUS304 Stainless Steel Heavy-Duty PU Caster Wheels | Load up to 650kg Per Wheel for Trolleys & Equipment

If you need robust, corrosion-resistant heavy load casters for hand trolleys, industrial machinery, mobile racks or large furniture, our 304 stainless steel PU heavy-duty casters are your ideal option.

Available in four popular sizes: 4 inch,5 inch,6 inch and 8 inch. The load capacity ranges from 400kg,500kg,600kg up to 650kg per single wheel, perfect for heavy-duty transport requirements.

The entire bracket is constructed with premium SUS304 stainless steel. Unlike ordinary plated steel casters that easily rust in humid, wet or chemical environments, SUS304 stainless steel provides excellent anti-rust and anti-corrosion performance. It works great in food workshops, seafood processing plants, wash-down areas and outdoor locations.

The wheel is made of high-performance red PU (polyurethane). PU wheels offer high load-bearing strength, good wear resistance and low rolling resistance. It can bear heavy weight without deformation, rolling smoothly on concrete, epoxy and hard flat floors. It also reduces vibration and noise during movement.

We supply two types of casters in this series: swivel casters and swivel casters with total lock brake. The total lock brake locks both wheel rotation and swivel rotation at once. The foot pedal design makes locking and releasing easy, helping secure your heavy equipment firmly in place and prevent unexpected sliding.

✅ Frame Material: SUS304 Stainless Steel, anti-rust & anti-corrosion

✅ Wheel Material: Heavy-duty Red PU, wear-resistant, high load bearing

✅ Sizes: 4 / 5 / 6 / 8 inch

✅ Single wheel load: 400kg / 500kg / 600kg / 650kg

✅ Types: Swivel caster, Swivel caster with total lock brake

✅ Smooth rotation, low rolling resistance

✅ Heavy load capacity for industrial use

• Heavy-duty hand trolleys & transport carts
• Industrial mobile machinery and equipment
• Large mobile storage racks and workbenches
• Food processing, seafood factory, wet workshop
• Heavy movable furniture, medical large equipment
• Outdoor and humid working environments

Many factories face rust problems on casters in wet or high-humidity workshops. Ordinary carbon steel casters will corrode quickly, shorten service life and even reduce safety. Our SUS304 stainless steel structure solves this pain point completely.

The solid red PU wheel is tough and durable. Compared with rubber wheels, PU can withstand much heavier loads and has superior abrasion resistance. It rolls easily even under maximum load, saving labor when moving heavy goods.

We support samples for testing. Whether you are looking for 4-inch compact heavy casters or 8-inch ultra-heavy load casters, we can customize and quote for your project.