AKMH41C-ACKNCA1K Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen AKMH41C-ACKNCA1K is a hygienic stainless steel washdown motor from the AKMH Stainless Servomotors series. It features an IP69K protection class and a 1.4404 (316L) stainless steel housing, with a flange diameter of 114 mm and a shaft diameter of 19 mm. This motor supports a peak torque of 5.75 Nm, a standstill torque of 1.77 Nm, and allows an axial load up to 1400 N.
Internal Product Review
The AKMH41C-ACKNCA1K is a hygienic stainless steel washdown motor built with 316L stainless steel for demanding sanitary applications. IP69K protection and an FDA-approved O-ring flange seal support dependable service in aggressive washdown environments. Smart Feedback Device (SFD3) encoder integration and 5.75 Nm peak torque make this motor a strong choice for precise hygienic motion control.
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Product Description:
The AKMH41C-ACKNCA1K is a hygienic stainless steel washdown motor manufactured by Kollmorgen for the AKMH Stainless Servomotors series. Its 1.4404 (316L) stainless housing, a washdown-rated shaft seal, and FDA-approved O-ring flange sealing let the unit remain in place during caustic foam and high-pressure cleaning. Delivered with a preassembled one-meter cable for AKD drives, the motor supplies rotary motion to conveyors, fillers, and mixers without a holding brake. It uses flange-mounted IEC geometry to simplify installation in sanitary automation cells. The fixed cable arrangement also removes the need for a separate motor connector at the housing.
Electrical behavior is built around a maximum bus voltage of 640 VDC. Winding type C has 21.3 Ω resistance and 66.1 mH inductance, so the stator draws 1.46 A at standstill and produces 1.77 Nm of continuous torque. Short overloads can reach 5.75 Nm, and the torque constant of 1.25 Nm/A links current to output with predictable linearity. Position and speed are reported through an 11-bit Smart Feedback Device (SFD3) encoder, giving the drive the rotor data needed for closed-loop motion control. A rotor inertia of 0.81 kg cm² and length code 1 support rapid response, while a 40-minute thermal time constant describes heat buildup during steady operation. This combination suits applications that need steady low-speed torque and brief overload capability during startup or index moves. The motor is sealed to IP69K, and mineral-filled PTFE elements resist chemical attack during washdown.
Mechanically, the motor fits the AKMH4 frame with a flange diameter of 114 mm, an 80 mm pilot, and IM B5 mounting per DIN 748 / DIN 6885 T1. The pilot and flange arrangement support accurate centering on the machine face during mounting. The closed-keyway shaft measures 19 mm and can accommodate radial forces up to 450 N and axial forces up to 1400 N. Motor length is 166.7 mm, overall surface roughness stays below 0.8 µm, and the IEC flange mount carries a mass of 6.1 kg. The compact length leaves room for coupling guards and hose-down clearances in enclosed machine sections.
