A rail-mounted transfer trolley carries the heaviest loads with the least effort along a fixed route, while a trackless trolley on polyurethane wheels trades some capacity for the freedom to steer anywhere a level concrete floor goes; the choice comes down to load, floor and whether the route will ever change.
Rail-mounted: the heavy-load default
Forged steel wheels on rail have very low rolling resistance, which is why every motorised transfer trolley we build above about 50 ton runs on rail. A 150 ton coil car on steel wheels needs a fraction of the drive power a trackless machine would, tracks perfectly straight without steering, and stops exactly where the rail puts it, which matters when the drop point is a coil car pit or a mandrel. The rail also takes the load off the floor: a 100 ton coil on four small polyurethane tyres would punch through most industrial slabs, whereas the same load on rail spreads into the bedding beneath it.
Trackless: the flexible option
A trackless trolley runs on polyurethane-tyred wheels, usually with a steered front axle or a differential drive, on a level concrete floor. It can go around a column, serve a second bay, and be reassigned when the shop is rearranged, with no civil work when it arrives. The battery operated transfer trolley is the usual form, since a trailing cable defeats the point of steering. Practical limits are load, roughly 50 ton before tyre loads become a floor problem, and floor quality: a broken or uneven floor will stop a trackless trolley long before it stops a rail one.
Side by side
| Rail-mounted | Trackless | |
|---|---|---|
| Capacity | To 150 ton | To roughly 50 ton |
| Route | Fixed by the rail | Steerable on any level floor |
| Floor | Rail bedding takes the load | Sound, level concrete needed |
| Civil work | Rail installation | None |
| Power | Cable reel, busbar, battery or DG | Battery, occasionally cable |
| Typical use | Coil and slab transfer in mills | Dies, fabrications, assemblies |
Which to choose
Take rail for any load above 50 ton, any route with a fixed pit, mandrel or crane bay at each end, and any plant that already has rail in the floor. Take trackless for loads under 50 ton on a good floor, where the route serves several stations or will change, and where rails would obstruct forklifts and people. The power supply follows from the same decision; our comparison of battery, DG and cable reel power and the layout post on fixed-rail vs mobile coil transfer cover that side. Send us the load, the route and a note on the floor and we will recommend one before you lay any rail.
Frequently asked questions
Can a trackless trolley run on an ordinary factory floor?
Yes, provided the concrete is sound, level and free of expansion-joint steps larger than a few millimetres. A fresh industrial slab of M25 or better is fine; a cracked or patched floor is not.
Is a rail trolley faster?
Both run at 0 to 25 m/min. The rail trolley reaches the top of that range more easily with heavy loads because its rolling resistance is so much lower.
Can a trackless trolley be steered by remote?
Yes. Wireless remote with proportional steering and speed is the normal fit, and the operator walks alongside rather than riding.
Export Availability
For overseas plants a trackless trolley avoids any trackside civil work at the buyer's end and ships as one crated unit; a rail trolley is machined to the rail section and gauge on the buyer's drawing and shipped with the wheel sets fitted. Both are quoted with the control panel and charger or cable reel built to the destination supply, and with a commissioning visit where the route is long.
Manufactured at Pragya's Pithampur (Indore) works and exported to steel mills worldwide — 22+ countries across 5 continents to date. Every export order ships with mill test certificates, ocean-freight packing, and full customs documentation, quoted FOB or CIF.
Interested in our industrial equipment?
Our export team, based in Indore, India, will recommend the right solution and quote FOB or CIF pricing for your shipment.
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