Quick Verdict
Choosing between these two servo stepper motion control packages comes down to price, condition, and power orientation. The Kollmorgen Servo Motor and Drive is listed at $300.00, while the Brake AC Servo Motor 1KW 4NM NEMA32 Drive Amplifier 220V CW/CCW Z Axis Milling is listed at $536.99-a $236.99 spread that makes the decision meaningful. If you want the lower-cost option, the used Kollmorgen is the pick. If you want a new package with more integrated control, the Yifeng is the pick.
Comparison Table
| Product | Listed Price | Key Details | Best For |
|---|---|---|---|
| Kollmorgen Servo Motor and Drive | USD 300.00 | 480V power rating, used, US-built, AKMH31C-CCKNGF5K and AKD-P00307-NBEI-0000, dust tight, protected from spraying/dripping/splashing water | 480V industrial motion control |
| Brake AC Servo Motor 1KW 4NM NEMA32 Drive Amplifier 220V CW/CCW Z Axis Milling | USD 536.99 | New, 1KW, 4NM, NEMA32, brake, 220V drive amplifier, 180-240V input, Modbus RS485/RS232, 3m cable | New 220V CNC/automation builds |
Where Each Product Wins
- Kollmorgen wins on price and environmental protection.
- Yifeng wins on new condition and integrated brake/control.
Product Notes
Kollmorgen Servo Motor and Drive
The Kollmorgen pairing is a servo motor and drive combo with a 480V power rating, which makes it a solid match for higher-voltage industrial lines. It is used, but protection details point to a rugged unit: dust tight and resistant to spraying, dripping, and splashing water. The listed model pair, AKMH31C-CCKNGF5K and AKD-P00307-NBEI-0000, identifies the exact motor and drive. That matters because you aren't guessing about compatibility between components. The main limitation is the used condition; if you want a brand-new unit, this is not it. Its lower cost is a real plus, but you are accepting a pre-owned product rather than a factory-new one.
Brake AC Servo Motor 1KW 4NM NEMA32 Drive Amplifier 220V CW/CCW Z Axis Milling
The Yifeng package is a new 1KW motor with 4NM torque, NEMA32 sizing, and a brake, paired with a 220V drive amplifier that accepts 180V to 240V input. It supports position, speed, and torque modes, plus Modbus RS485/RS232, and includes a 3m cable. This makes it a complete package for CNC Z-axis work, with the cable already sized for connecting the encoder and power. The limitation is the higher listed price compared with the Kollmorgen, so it asks for a larger upfront investment. If your project needs a brake, the Yifeng includes it.
Final Choice by Use Case
Choose the Kollmorgen Servo Motor and Drive when your motion control project runs on a 480V supply and you are comfortable with a used motor-and-drive pair. Choose the Brake AC Servo Motor 1KW 4NM NEMA32 Drive Amplifier 220V CW/CCW Z Axis Milling when you want a new 220V servo with a brake and communication for CNC or automation work. The Yifeng costs more, but the brake, new condition, and built-in control can justify the price for a fresh build.
