The Envoy 3-inch Red PU Plate Castor delivers 75 mm diameter ball-bearing smooth rolling for medium-duty trolleys, racks, and material-handling carts — Multi Trade Combines stocks it in Guwahati, price on request.
The 75 mm polyurethane castor steps up from the 2-inch light-duty range to handle genuine medium-duty workshop and industrial material-handling tasks. The ball-bearing hub keeps rolling resistance low even under sustained loads, reducing operator fatigue on long shifts. The plate-fit design bolts directly to any flat frame member — the four-hole bolt pattern suits standard trolley and shelf-rack dimensions.
Fabrication shops in Guwahati and Dibrugarh use these under steel-stock trolleys and electrode-storage racks. Auto-garages roll battery-trolleys and compressor skids on 3-inch castors because the larger diameter clears floor debris that a 2-inch wheel would jam on. PWD stores departments fit them to mobile cable-reel stands. Tea-estate engineering workshops use them on spare-parts racks that are moved seasonally during plucking-machinery overhauls. Electrical contractors mount cable drums on castor-fitted wooden frames for easy deployment on site.
For maximum manoeuvrability, use four swivel castors. For controlled straight-line movement — as on a hospital trolley or production-line cart — combine two fixed and two swivel castors. Braking-pin castors are also available on request for applications where the loaded trolley must hold position.
The Envoy 2-inch PU Castor suits lighter applications under the same brand umbrella. Hand pallet trucks and hydraulic bottle jacks complement castor-mounted trolleys for yard-level movement and vertical positioning. All stocked at Multi Trade Combines, AT Road, Guwahati.
| Brand | Envoy |
|---|---|
| Category | Castors & Trolleys |
| Key specs | 75 mm · ball bearing · plate fit |
| Wheel diameter | 75 mm (3 inch) |
| Hub type | Ball bearing |
| Fitting type | Flat plate — bolt-on |
| Duty | Medium duty — material-handling trolleys, racks, compressor skids |
| Availability | In stock — price on request |
A 75 mm ball-bearing plate castor in the Envoy range typically rates 80–120 kg per wheel. A four-castor trolley can therefore move loads of 300–450 kg. For heavier payloads — say, steel-stock or generator trolleys — consider 4-inch or 5-inch castors with double-ball-bearing hub design.
The red tread is a coloured polyurethane formulation that still offers oil and solvent resistance but is visually distinct on the shop floor, making damaged wheels easy to spot during safety walkthroughs. It does not affect load capacity or rolling performance compared to standard grey or black PU wheels.