Verified model comparison
Compare drum screening and conveyor arrangements with the intended material, output and mobilization.
Specify feed moisture, contamination, required cut and product destinations before choosing drum media and operating setup. Drum diameter and length describe hardware, not guaranteed screening quality or tonnes per hour. Obtain supplier-supported application guidance for the actual material.
Both records distinguish operating conveyor positions from transport. The Doppstadt reference is the standard rear-conveyor two-axle package; another conveyor length or support arrangement needs separate dimensions. Map loader approach and every discharge pile using the exact deployed layout.
Inspect drum, media, support rollers, drive, brushes or cleaning equipment if fitted, feeder and conveyor belts. Check trailer identity and running gear separately. Compare media changes, cleaning, loading and hauling time using the same work brief rather than nominal machine size.
Generation/configuration-aware: measurement basis and reference configuration travel with each value. A difference in basis is not treated as a performance difference.
| Specification | McCloskey 621 Screener | Doppstadt SM 620.3 Screener |
|---|---|---|
| Transport length | 60 ft 9 in18.52 mManufacturer 621 wheeled trommel reference, transport configuration with stockpiling conveyor stowed. The current page uses 621 as its model title and shows 621RE-named imagery; no tracked 621 variant is included. | 38 ft 9 in11,810 mmSM 620.3 two-axle trailer with standard 5,500 mm rear and side discharge conveyors, transport position; the optional 3,000 mm rear conveyor is excluded. |
| Transport width | 8 ft 11.5 in2.73 mManufacturer 621 wheeled trommel reference, transport configuration with stockpiling conveyor stowed. The current page uses 621 as its model title and shows 621RE-named imagery; no tracked 621 variant is included. | 8 ft 4.4 in2,550 mmSM 620.3 two-axle trailer with standard 5,500 mm rear and side discharge conveyors, transport position; the optional 3,000 mm rear conveyor is excluded. |
| Transport height | 13 ft 6 in4.12 mManufacturer 621 wheeled trommel reference, transport configuration with stockpiling conveyor stowed. The current page uses 621 as its model title and shows 621RE-named imagery; no tracked 621 variant is included. | 13 ft 1.5 in4,000 mmSM 620.3 two-axle trailer with standard 5,500 mm rear and side discharge conveyors, transport position; the optional 3,000 mm rear conveyor is excluded. |
| Working height | 16 ft 9 in5.11 mManufacturer working arrangement with conveyor deployed. | 11 ft 5.4 in3,490 mmManufacturer working arrangement; distinct from folded transport height. |
| Working length | 95 ft 7 in29.13 mManufacturer working arrangement with conveyor deployed. | 51 ft 6.7 in15,715 mmManufacturer working arrangement, standard conveyors deployed. |
| Drum diameter | 6 ft1.83 mManufacturer 621 wheeled trommel reference, transport configuration with stockpiling conveyor stowed. The current page uses 621 as its model title and shows 621RE-named imagery; no tracked 621 variant is included. | 7 ft 2.6 in2,200 mmSM 620.3 two-axle trailer with standard 5,500 mm rear and side discharge conveyors, transport position; the optional 3,000 mm rear conveyor is excluded. |
| Drum length | 21 ft6.40 mManufacturer 621 wheeled trommel reference, transport configuration with stockpiling conveyor stowed. The current page uses 621 as its model title and shows 621RE-named imagery; no tracked 621 variant is included. | 18 ft 0.5 in5,500 mmSM 620.3 two-axle trailer with standard 5,500 mm rear and side discharge conveyors, transport position; the optional 3,000 mm rear conveyor is excluded. |
| Width — working arrangement | Not published in this research record | 22 ft 10.4 in6,970 mmManufacturer working arrangement, standard conveyors deployed. |
| Discharge conveyor rear — width | Not published in this research record | 3 ft 3.4 in1,000 mmSM 620.3 two-axle trailer with standard 5,500 mm rear and side discharge conveyors, transport position; the optional 3,000 mm rear conveyor is excluded. |
| Discharge conveyor rear — length | Not published in this research record | 18 ft 0.5 in5,500 mmSM 620.3 two-axle trailer with standard 5,500 mm rear and side discharge conveyors, transport position; the optional 3,000 mm rear conveyor is excluded. |
| Discharge conveyor rear — height | Not published in this research record | 11 ft 3.8 in3,450 mmStandard rear discharge conveyor working arrangement. |
| Discharge conveyor side — height | Not published in this research record | 11 ft 5.4 in3,490 mmStandard side discharge conveyor working arrangement. |
A wheeled trommel for a screening operation that needs both a drum and a substantial stockpiling layout. The manufacturer’s current 621 identity is retained rather than creating separate suffix-based records without distinct evidence.
ExploreA trailer-mounted drum screen for processing applications such as compost, earth and biomass. Its standard conveyor package defines a much wider working area than its road transport width.
ExploreCarry utilization, fuel, wear, attachments and transport into an editable planning model.
ExploreNo winner is declared. Job fit depends on configuration, condition, dealer support, attachments, transport and cost assumptions beyond these published figures.