Stepper motor LDO-42STH48-2804AH(S55)

Stepper Motor LDO-42STH48-2804AH(S55)

High-current NEMA 17 stepper motor with extended shaft (55 mm) and insulation class H (up to 180 °C). Designed for dual-shaft support in Monolith Gantry systems – essential for Voron Trident and belt-driven setups with 9 mm belts. Excellent choice for high-precision and high-torque applications.

Technical specifications:

• Type: NEMA 17

• Model: LDO-42STH48-2804AH(S55)

• Step angle: 1.8° ±5% (200 steps per revolution)

• Number of phases: 2

• Rated voltage: 1.4 VDC

• Current per phase: 2.8 A

• Winding resistance (20 °C): 0.7 Ω ±10%

• Inductance: 0.6 mH ±20%

• Holding torque: ≥ 4.2 kg·cm (≈ 0.412 Nm or 42 N·cm)

• Weight: ~350 g

• Maximum operating temperature: up to 180 °C (Class H)

• Shaft: 5 mm diameter, 55 mm length, D-type

• Motor body length: 48 mm (without shaft)