50kg Heavy Duty Carriage & Flat Brass Roller – Commercial Sliding Door

Heavy duty metal carriage fitted with a flat brass roller for commercial sliding doors running on flat track. Rated to 50kg each.

Key Features

• Commercial — rated to 50kg each
• Metal carriage built for commercial duty cycles
• Flat brass roller for flat track
• Direct-fit replacement carriage

Fits & Replaces

• Direct replacement for most aluminium patio and commercial sliding door carriages running flat track.
• Suits high-traffic entrances, shopfronts and oversize or solid-core sliding doors
• Print the Actual Size Identifier below and lay your old part straight onto it — that confirms the fit in seconds

Specifications

• TradeBase SKU: CARCOM50F
• Carriage material: metal
• Roller: brass, flat profile
• Load capacity: 50kg each
• Duty rating: Commercial (30kg+)
• Overall size: 83.6mm
• Track type: flat

Installation Tips

• Check the track before you fit. File any burrs or flat spots smooth — a damaged track will chew out a new roller within weeks, and it does it faster under commercial load.
• Clean all grit and old grease out of the track. Grit is what kills a roller, not load.
• Replace carriages in pairs. A new roller running against a worn one carries uneven load and both wear out early.
• Fit the rear carriage first, then set the front carriage to get your floor clearance.
• Adjust the rear carriage last to bring the door parallel with the jamb, working from the handle side.
• Slide the door through its full travel before refitting stops or screens.

Care & Maintenance

• Use a dry lubricant only — silicone or dry PTFE. Oil and grease hold dust and grind the roller.
• On a high-traffic door, sweep the track monthly. Commercial duty is about cycles as much as weight.

Warranty

10-year TradeBase warranty plus your rights under the Australian Consumer Law.

Check the fit before you buy

Download the TradeBase Actual Size Identifier (PDF) and print it on A4 at 100% / Actual size — not Fit to page. The part is reproduced at true 1:1 scale on a 10 mm grid and measures 83.6 mm overall. Lay your existing part straight onto the page to confirm it matches. A calibration bar on the sheet lets you check the printer has not scaled the page.