T85H118-4208 NEMA-34 8 Wire
NEMA 34 stepper motor, 118mm body, 4.2 A/phase, 8.53 Nm / 87.0 kg-cm holding torque, 8 leads.
Overview
The T85H118-4208 is a NEMA 34 stepper motor with a 118mm body, holding almost double the T85H80-4208's torque - 8.53 Nm / 87.0 kg-cm against 4.51 Nm / 46.0 kg-cm - at the same 4.2 A current, because the extra body length carries more magnetic material rather than needing more current.
Winding figures are 0.9 ohm and 6.0 mH. The 4.2 A current suits a Tstep-117X (1.2-7.0 A) or Tstep-168X (1.2-8.0 A) drive.
Eight lead wires bring both halves of each phase winding out separately, so the motor can be wired in series for more torque at low speed or parallel for better torque at high speed.
At 118mm this is a long motor for a NEMA 34 flange - worth checking physical clearance behind the mounting flange before fitting one. Where the same current is enough at less length, the T85H80-4208 covers 4.51 Nm / 46.0 kg-cm in a shorter body, sharing the same NEMA 34 flange.
Supplied by Tiny Controls in India.
Specifications
| Flange size | 85 mm (NEMA 34) |
|---|---|
| Phase current | 4.2 A |
| Holding torque | 8.53 Nm \ 87 kg-cm |
| Phase resistance | 0.9 Ω |
| Phase inductance | 6.0 mH |
| Lead wires | 8 |
Downloads
Questions
118mm sounds long for a NEMA 34 motor — is clearance going to be an issue?
Worth checking first — this is a long motor for a NEMA 34 flange, so check physical clearance behind the mounting flange before fitting one.
This holds almost double the T85H80-4208's torque at the same current — how?
The extra body length carries more magnetic material, not more current — both draw the same 4.2A.
Does the 8-wire arrangement let me choose the wiring configuration?
Yes — you can wire it in series for more torque at low speed, or parallel for better torque at high speed.
What drive does this need?
A Tstep-117X (1.2-7.0A) or Tstep-168X (1.2-8.0A).
If the same current is enough but I need less length, what's shorter?
The T85H80-4208 — 4.51 Nm / 46.0 kg-cm in a shorter body, sharing the same NEMA 34 flange.