Size the inlet around the real feed
The TD912 entry has a 1200 × 900 mm cutting chamber and two 75 kW electric drives. These are model-specific figures in Harden's current TD-series page, rather than ratings copied from the smaller TD612 or hydraulic TDH family.
Describe the waste composition, maximum piece dimensions and contamination. Use a representative material trial to establish usable throughput and discharge behaviour; no TD-family maximum capacity is assigned to this model.

Harden TD-series manufacturer rendering. The exact pictured TD size is not identified; the TD912 parameters come from its separate model block.
Agree the cutting and drive arrangement
Harden describes independently driven shafts with forward and reverse operation. The TD912 block lists alternative rotor speeds, knife thicknesses and counts. Those choices need a compatible cutting arrangement rather than a promise that all alternatives are supplied together.
Specify the required downstream result, accepted contaminants and overload sequence. Confirm how the selected drive and knife arrangement will handle the intended feed and connect to the discharge or separation equipment.

TD-family motor and reducer rendering from Harden. This series illustration does not establish the exact motors or support arrangement supplied with a TD912 order.
Allow for the installed machine and maintenance
The current page lists 4824 × 2773 × 3245 mm dimensions and 10,800 kg total mass. Request the final installed drawing and foundation loads before arranging the support structure, lifting route or loading platform.
Reserve access for knife service, drive inspection, hopper loading and discharge clearance. Agree the electrical connection, controls, commissioning checks and wear-part schedule in the final machine scope.
Planning your configuration
- Provide feed composition, piece size, contaminants and the downstream process.
- Confirm a matched speed and knife configuration and trial-based throughput.
- Use the current TD912 drawing and loads; do not combine dimensions from an older brochure.
Manufacturer sources
Product information and images are based on the following manufacturer references, reviewed on 2026-10-20T03:21:25.927856+00:00.



