Lafert

High dynamic servo performance with standardized configurations and reduced delivery time

The Brushless Servo Motors range has been developed to support applications where dynamic performance, precision, and reliability are required without long lead times or complex selection processes.

Within Lafert’s broader brushless servo motor portfolio, with torque values from 0.2 Nm to 390 Nm, which includes a wide variety of mechanical, electrical, and customization options, the Preferred range represents a rationalized and predefined subset. It maintains the core technological advantages of the full range while simplifying selection and reducing lead times.

Built on Lafert’s low-inertia brushless servo motor platform, this range combines standardized configurations with application-oriented flexibility. The result is consistent motion performance across a wide variety of industrial applications, while simplifying motor selection and ensuring faster availability.

Continuous research and development, combined with close collaboration with machine builders and system integrators, has enabled Lafert to consolidate proven servo technology into a predefined Preferred range. While the complete Lafert servo portfolio allows extensive customization and configuration possibilities, the Preferred range focuses on the most requested combinations, ensuring optimized availability without compromising performance standards.

To support quick deployment, the Preferred range has been rationalized into 392 predefined configurations, covering 6 motor sizes with torque values from 0.5 Nm to 42 Nm. Motors are available with or without holding brake, with keyed or smooth shafts, and with multiple feedback options including resolver, incremental encoder, Hiperface, and Hiperface DSL.

A streamlined selection within Lafert’s complete brushless servo motors range, offering high dynamic performance with standardized configurations and reduced delivery time.

Low rotor inertia enables strong dynamic behaviour, supporting high acceleration, stable control, and repeatable positioning, even in applications operating at elevated speeds.

Main advantages

Predefined motor configurations for reduced lead times, enabling faster machine build, commissioning, and time-to-market
Wide torque coverage from 0.5 Nm to 42 Nm across six motor sizes, supporting most standard industrial motion applications without oversizing
Low-inertia rotor design for strong dynamic response, ensuring high acceleration, stable speed control, and repeatable positioning
Multiple feedback options including resolver, incremental encoder, Hiperface, and Hiperface DSL, allowing seamless integration with different drive platforms
Availability with or without holding brake and with different shaft options, supporting diverse mechanical layouts and safety requirements

TORQUE

0.20

390 Nm

SQUARE FLANGE

270 mm

SPEED

UP TO 6000 rpm

FRAME SIZE

20Q28Q30J36Q40J56Q63Q64J71Q100Q100J132I160Q

STANDARD SPECIFICATIONS

- Torque values from 0.20 Nm to 390 Nm
- High speed up to 6000 rpm
- High performance, high torque stability
- High possibility of overload
- High power and compact design
- Wide range of transducers:
resolver, incremental or absolute encoder
- IP65 protection; TENV construction
- Brake available as an option for the full range
- High competence in any special design, both mechanical and electrical
- Maximum flexibility in satisfaing specific market demands

options

- cURus certification
- Rotor inertia and balancing grade on request
- Customized flanges and special shafts
- Flange cooling (liquid)
- Special low voltage windings
- 230V applications
- Single connector solutions
- Safety Applications
- Water cooling (motor body) for medium / large size motors
- Forced ventilation for medium / large size motors
- Cons motor wiring side connectors
- Other (encoder type and connector, brake, thermal sensor, ...)

LOOK FOR YOUR PRODUCT

Type	Square flange mm	Nm	rpm	Cooling	Brake
B20.D2Q	40	0.18	6000	self cooled	with
B20.D2Q	40	0.18	6000	self cooled	without
B20.D3Q	40	0.32	6000	self cooled	with
B20.D3Q	40	0.32	6000	self cooled	without
B28.D2Q	58	0.25	6000	self cooled	with
B28.D2Q	58	0.25	6000	self cooled	without
B28.D5Q	58	0.50	3000	self cooled	with
B28.D5Q	58	0.50	3000	self cooled	without
B28.D5Q	58	0.50	6000	self cooled	with
B28.D5Q	58	0.50	6000	self cooled	without
B28.D7Q	58	0.75	3000	self cooled	with
B28.D7Q	58	0.75	3000	self cooled	without
B28.D7Q	58	0.75	6000	self cooled	with
B28.D7Q	58	0.75	6000	self cooled	without
B28.01Q	58	1.00	3000	self cooled	with
B28.01Q	58	1.00	3000	self cooled	without
B28.01Q	58	1.00	6000	self cooled	with
B28.01Q	58	1.00	6000	self cooled	without
B28.E2Q	58	1.25	3000	self cooled	with
B28.E2Q	58	1.25	3000	self cooled	without
B28.E2Q	58	1.25	6000	self cooled	with
B28.E2Q	58	1.25	6000	self cooled	without
B30.D7J	60	0.70	6000	self cooled	with
B30.D7J	60	0.70	6000	self cooled	without
B30.E4J	60	1.40	6000	self cooled	with
B30.E4J	60	1.40	6000	self cooled	without
B36.D6Q	70	0.60	3000	self cooled	with
B36.D6Q	70	0.60	3000	self cooled	without
B36.D6Q	70	0.60	6000	self cooled	with
B36.D6Q	70	0.60	6000	self cooled	without
B36.E2Q	70	1.20	3000	self cooled	with
B36.E2Q	70	1.20	3000	self cooled	without
B36.E2Q	70	1.20	6000	self cooled	with
B36.E2Q	70	1.20	6000	self cooled	without
B36.E8Q	70	1.80	3000	self cooled	with
B36.E8Q	70	1.80	3000	self cooled	without
B36.E8Q	70	1.80	6000	self cooled	with
B36.E8Q	70	1.80	6000	self cooled	without
B36.F4Q	70	2.40	3000	self cooled	with
B36.F4Q	70	2.40	3000	self cooled	without
B36.F4Q	70	2.40	6000	self cooled	with
B36.F4Q	70	2.40	6000	self cooled	without
B36.03Q	70	3.00	3000	self cooled	with
B36.03Q	70	3.00	3000	self cooled	without
B36.03Q	70	3.00	6000	self cooled	with
B36.03Q	70	3.00	6000	self cooled	without
B40.D7J	80	0.70	6000	self cooled	with
B40.D7J	80	0.70	6000	self cooled	without
B40.E4J	80	1.40	3000	self cooled	with
B40.E4J	80	1.40	3000	self cooled	without
B40.E4J	80	1.40	6000	self cooled	with
B40.E4J	80	1.40	6000	self cooled	without
B40.F7J	80	2.70	3000	self cooled	with
B40.F7J	80	2.70	3000	self cooled	without
B40.F7J	80	2.70	6000	self cooled	with
B40.F7J	80	2.70	6000	self cooled	without
B56.E3Q	91	1.35	3000	self cooled	with
B56.E3Q	91	1.35	3000	self cooled	without
B56.E3Q	91	1.35	6000	self cooled	with
B56.E3Q	91	1.35	6000	self cooled	without
B56.F6Q	91	2.60	3000	self cooled	with
B56.F6Q	91	2.60	3000	self cooled	without
B56.F6Q	91	2.60	6000	self cooled	with
B56.F6Q	91	2.60	6000	self cooled	without
B56.G5Q	91	3.50	3000	self cooled	with
B56.G5Q	91	3.50	3000	self cooled	without
B56.G5Q	91	3.50	6000	self cooled	with
B56.G5Q	91	3.50	6000	self cooled	without
B56.H5Q	91	4.50	3000	self cooled	with
B56.H5Q	91	4.50	3000	self cooled	without
B56.H5Q	91	4.50	6000	self cooled	with
B56.H5Q	91	4.50	6000	self cooled	without
B63.04Q	100	4.00	3000	self cooled	with
B63.04Q	100	4.00	3000	self cooled	without
B63.04Q	100	4.00	4500	self cooled	with
B63.04Q	100	4.00	4500	self cooled	without
B63.04Q	100	4.00	6000	self cooled	with
B63.04Q	100	4.00	6000	self cooled	without
B63.04Q	100	4.80	3000	air cooled	with
B63.04Q	100	4.80	3000	air cooled	without
B63.04Q	100	4.80	4500	air cooled	with
B63.04Q	100	4.80	4500	air cooled	without
B63.04Q	100	4.80	6000	air cooled	with
B63.04Q	100	4.80	6000	air cooled	without
B63.06Q	100	6.00	3000	self cooled	with
B63.06Q	100	6.00	3000	self cooled	without
B63.06Q	100	6.00	4500	self cooled	with
B63.06Q	100	6.00	4500	self cooled	without
B63.06Q	100	6.00	6000	self cooled	with
B63.06Q	100	6.00	6000	self cooled	without
B63.06Q	100	7.40	3000	air cooled	with
B63.06Q	100	7.40	3000	air cooled	without
B63.06Q	100	7.40	4500	air cooled	with
B63.06Q	100	7.40	4500	air cooled	without
B63.06Q	100	7.40	6000	air cooled	with
B63.06Q	100	7.40	6000	air cooled	without
B63.08Q	100	8.00	3000	self cooled	with
B63.08Q	100	8.00	3000	self cooled	without
B63.08Q	100	8.00	4500	self cooled	with
B63.08Q	100	8.00	4500	self cooled	without
B63.08Q	100	8.00	6000	self cooled	with
B63.08Q	100	8.00	6000	self cooled	without
B63.10Q	100	10.00	3000	self cooled	with
B63.10Q	100	10.00	3000	self cooled	without
B63.10Q	100	10.00	4500	self cooled	with
B63.10Q	100	10.00	4500	self cooled	without
B63.10Q	100	10.00	6000	self cooled	with
B63.10Q	100	10.00	6000	self cooled	without
B63.08Q	100	10.10	3000	air cooled	with
B63.08Q	100	10.10	3000	air cooled	without
B63.08Q	100	10.10	4500	air cooled	with
B63.08Q	100	10.10	4500	air cooled	without
B63.08Q	100	10.10	6000	air cooled	with
B63.08Q	100	10.10	6000	air cooled	without
B63.10Q	100	13.00	3000	air cooled	with
B63.10Q	100	13.00	3000	air cooled	without
B63.10Q	100	13.00	4500	air cooled	with
B63.10Q	100	13.00	4500	air cooled	without
B63.10Q	100	13.00	6000	air cooled	with
B63.10Q	100	13.00	6000	air cooled	without
B64.06J	116	6.00	3000	self cooled	with
B64.06J	116	6.00	3000	self cooled	without
B64.06J	116	6.00	4500	self cooled	with
B64.06J	116	6.00	4500	self cooled	without
B64.08J	116	8.00	3000	self cooled	with
B64.08J	116	8.00	3000	self cooled	without
B64.08J	116	8.00	4500	self cooled	with
B64.08J	116	8.00	4500	self cooled	without
B64.10J	116	10.00	3000	self cooled	with
B64.10J	116	10.00	3000	self cooled	without
B64.10J	116	10.00	4500	self cooled	with
B64.10J	116	10.00	4500	self cooled	without
B64.12J	116	12.00	3000	self cooled	with
B64.12J	116	12.00	3000	self cooled	without
B64.12J	116	12.00	4500	self cooled	with
B64.12J	116	12.00	4500	self cooled	without
B64.14J	116	14.00	3000	self cooled	with
B64.14J	116	14.00	3000	self cooled	without
B64.14J	116	14.00	4500	self cooled	with
B64.14J	116	14.00	4500	self cooled	without
B71.04Q	142	4.50	2000	self cooled	with
B71.04Q	142	4.50	2000	self cooled	without
B71.04Q	142	4.50	3000	self cooled	with
B71.04Q	142	4.50	3000	self cooled	without
B71.04Q	142	4.50	4500	self cooled	with
B71.04Q	142	4.50	4500	self cooled	without
B71.04Q	142	6.00	2000	air cooled	with
B71.04Q	142	6.00	2000	air cooled	without
B71.04Q	142	6.00	3000	air cooled	with
B71.04Q	142	6.00	3000	air cooled	without
B71.04Q	142	6.00	4500	air cooled	with
B71.04Q	142	6.00	4500	air cooled	without
B71.08Q	142	9.00	2000	self cooled	with
B71.08Q	142	9.00	2000	self cooled	without
B71.08Q	142	9.00	3000	self cooled	with
B71.08Q	142	9.00	3000	self cooled	without
B71.08Q	142	9.00	4500	self cooled	with
B71.08Q	142	9.00	4500	self cooled	without
B71.08Q	142	12.00	2000	air cooled	with
B71.08Q	142	12.00	2000	air cooled	without
B71.08Q	142	12.00	3000	air cooled	with
B71.08Q	142	12.00	3000	air cooled	without
B71.08Q	142	12.00	4500	air cooled	with
B71.08Q	142	12.00	4500	air cooled	without
B71.12Q	142	12.50	2000	self cooled	with
B71.12Q	142	12.50	2000	self cooled	without
B71.12Q	142	12.50	3000	self cooled	with
B71.12Q	142	12.50	3000	self cooled	without
B71.12Q	142	12.50	4500	self cooled	with
B71.12Q	142	12.50	4500	self cooled	without
B71.16Q	142	16.00	2000	self cooled	with
B71.16Q	142	16.00	2000	self cooled	without
B71.16Q	142	16.00	3000	self cooled	with
B71.16Q	142	16.00	3000	self cooled	without
B71.16Q	142	16.00	4500	self cooled	with
B71.16Q	142	16.00	4500	self cooled	without
B71.12Q	142	17.00	2000	air cooled	with
B71.12Q	142	17.00	2000	air cooled	without
B71.12Q	142	17.00	3000	air cooled	with
B71.12Q	142	17.00	3000	air cooled	without
B71.12Q	142	17.00	4500	air cooled	with
B71.12Q	142	17.00	4500	air cooled	without
B71.20Q	142	20.00	2000	self cooled	with
B71.20Q	142	20.00	2000	self cooled	without
B71.20Q	142	20.00	3000	self cooled	with
B71.20Q	142	20.00	3000	self cooled	without
B71.20Q	142	20.00	4500	self cooled	with
B71.20Q	142	20.00	4500	self cooled	without
B71.16Q	142	22.00	2000	air cooled	with
B71.16Q	142	22.00	2000	air cooled	without
B71.16Q	142	22.00	3000	air cooled	with
B71.16Q	142	22.00	3000	air cooled	without
B71.16Q	142	22.00	4500	air cooled	with
B71.16Q	142	22.00	4500	air cooled	without
B71.26Q	142	26.00	2000	self cooled	with
B71.26Q	142	26.00	2000	self cooled	without
B71.26Q	142	26.00	3000	self cooled	with
B71.26Q	142	26.00	3000	self cooled	without
B71.26Q	142	26.00	4500	self cooled	with
B71.26Q	142	26.00	4500	self cooled	without
B71.20Q	142	27.50	2000	air cooled	with
B71.20Q	142	27.50	2000	air cooled	without
B71.20Q	142	27.50	3000	air cooled	with
B71.20Q	142	27.50	3000	air cooled	without
B71.20Q	142	27.50	4500	air cooled	with
B71.20Q	142	27.50	4500	air cooled	without
B71.29Q	142	29.00	2000	self cooled	with
B71.29Q	142	29.00	2000	self cooled	without
B71.29Q	142	29.00	3000	self cooled	with
B71.29Q	142	29.00	3000	self cooled	without
B71.29Q	142	29.00	4500	self cooled	with
B71.29Q	142	29.00	4500	self cooled	without
B71.32Q	142	32.00	2000	self cooled	with
B71.32Q	142	32.00	2000	self cooled	without
B71.32Q	142	32.00	3000	self cooled	with
B71.32Q	142	32.00	3000	self cooled	without
B71.32Q	142	32.00	4500	self cooled	with
B71.32Q	142	32.00	4500	self cooled	without
B71.35Q	142	35.00	2000	self cooled	with
B71.35Q	142	35.00	2000	self cooled	without
B71.35Q	142	35.00	3000	self cooled	with
B71.35Q	142	35.00	3000	self cooled	without
B71.35Q	142	35.00	4500	self cooled	with
B71.35Q	142	35.00	4500	self cooled	without
B71.26Q	142	35.50	2000	air cooled	with
B71.26Q	142	35.50	2000	air cooled	without
B71.26Q	142	35.50	3000	air cooled	with
B71.26Q	142	35.50	3000	air cooled	without
B71.26Q	142	35.50	4500	air cooled	with
B71.26Q	142	35.50	4500	air cooled	without
B71.38Q	142	38.00	2000	self cooled	with
B71.38Q	142	38.00	2000	self cooled	without
B71.38Q	142	38.00	3000	self cooled	with
B71.38Q	142	38.00	3000	self cooled	without
B71.38Q	142	38.00	4500	self cooled	with
B71.38Q	142	38.00	4500	self cooled	without
B71.29Q	142	40.00	2000	air cooled	with
B71.29Q	142	40.00	2000	air cooled	without
B71.29Q	142	40.00	3000	air cooled	with
B71.29Q	142	40.00	3000	air cooled	without
B71.29Q	142	40.00	4500	air cooled	with
B71.29Q	142	40.00	4500	air cooled	without
B71.32Q	142	44.00	2000	air cooled	with
B71.32Q	142	44.00	2000	air cooled	without
B71.32Q	142	44.00	3000	air cooled	with
B71.32Q	142	44.00	3000	air cooled	without
B71.32Q	142	44.00	4500	air cooled	with
B71.32Q	142	44.00	4500	air cooled	without
B71.35Q	142	48.00	2000	air cooled	with
B71.35Q	142	48.00	2000	air cooled	without
B71.35Q	142	48.00	3000	air cooled	with
B71.35Q	142	48.00	3000	air cooled	without
B71.35Q	142	48.00	4500	air cooled	with
B71.35Q	142	48.00	4500	air cooled	without
B71.38Q	142	52.00	2000	air cooled	with
B71.38Q	142	52.00	2000	air cooled	without
B71.38Q	142	52.00	3000	air cooled	with
B71.38Q	142	52.00	3000	air cooled	without
B71.38Q	142	52.00	4500	air cooled	with
B71.38Q	142	52.00	4500	air cooled	without
B10.20J	190	20.00	2000	self cooled	with
B10.20J	190	20.00	2000	self cooled	without
B10.20J	190	20.00	3000	self cooled	with
B10.20J	190	20.00	3000	self cooled	without
B10.20J	190	26.00	2000	air cooled	without
B10.20J	190	26.00	2000	air cooled	with
B10.20J	190	26.00	3000	air cooled	without
B10.20J	190	26.00	3000	air cooled	with
B10.28J	190	28.00	2000	self cooled	with
B10.28J	190	28.00	2000	self cooled	without
B10.28J	190	28.00	3000	self cooled	with
B10.28J	190	28.00	3000	self cooled	without
B10.35Q	190	35.00	1500	self cooled	with
B10.35Q	190	35.00	1500	self cooled	without
B10.35Q	190	35.00	3000	self cooled	with
B10.35Q	190	35.00	3000	self cooled	without
B10.36J	190	36.00	2000	self cooled	with
B10.36J	190	36.00	2000	self cooled	without
B10.36J	190	36.00	3000	self cooled	with
B10.36J	190	36.00	3000	self cooled	without
B10.28J	190	36.40	2000	air cooled	without
B10.28J	190	36.40	2000	air cooled	with
B10.28J	190	36.40	3000	air cooled	without
B10.28J	190	36.40	3000	air cooled	with
B10.42J	190	42.00	2000	self cooled	with
B10.42J	190	42.00	2000	self cooled	without
B10.42J	190	42.00	3000	self cooled	with
B10.42J	190	42.00	3000	self cooled	without
B10.36J	190	47.20	2000	air cooled	without
B10.36J	190	47.20	2000	air cooled	with
B10.36J	190	47.20	3000	air cooled	without
B10.36J	190	47.20	3000	air cooled	with
B10.35Q	190	53.00	1500	air cooled	with
B10.35Q	190	53.00	1500	air cooled	without
B10.35Q	190	53.00	3000	air cooled	with
B10.35Q	190	53.00	3000	air cooled	without
B10.54Q	190	54.00	1500	self cooled	with
B10.54Q	190	54.00	1500	self cooled	without
B10.54Q	190	54.00	3000	self cooled	with
B10.54Q	190	54.00	3000	self cooled	without
B10.42J	190	55.40	2000	air cooled	without
B10.42J	190	55.40	2000	air cooled	with
B10.42J	190	55.40	3000	air cooled	without
B10.42J	190	55.40	3000	air cooled	with
B10.56J	190	56.00	2000	self cooled	without
B10.56J	190	56.00	2000	self cooled	with
B10.56J	190	56.00	3000	self cooled	without
B10.56J	190	56.00	3000	self cooled	with
B10.62Q	190	62.00	1500	self cooled	with
B10.62Q	190	62.00	1500	self cooled	without
B10.62Q	190	62.00	3000	self cooled	with
B10.62Q	190	62.00	3000	self cooled	without
B10.68J	190	68.00	2000	self cooled	without
B10.68J	190	68.00	2000	self cooled	with
B10.68J	190	68.00	3000	self cooled	without
B10.68J	190	68.00	3000	self cooled	with
B10.72Q	190	72.00	1500	self cooled	with
B10.72Q	190	72.00	1500	self cooled	without
B10.72Q	190	72.00	3000	self cooled	with
B10.72Q	190	72.00	3000	self cooled	without
B10.56J	190	74.50	2000	air cooled	without
B10.56J	190	74.50	2000	air cooled	with
B10.56J	190	74.50	3000	air cooled	with
B10.56J	190	74.50	3000	air cooled	without
B10.80J	190	80.00	2000	self cooled	without
B10.80J	190	80.00	2000	self cooled	with
B10.80J	190	80.00	3000	self cooled	without
B10.80J	190	80.00	3000	self cooled	with
B10.54Q	190	81.00	1500	air cooled	with
B10.54Q	190	81.00	1500	air cooled	without
B10.54Q	190	81.00	3000	air cooled	with
B10.54Q	190	81.00	3000	air cooled	without
B10.90Q	190	90.00	1500	self cooled	with
B10.90Q	190	90.00	1500	self cooled	without
B10.90Q	190	90.00	3000	self cooled	with
B10.90Q	190	90.00	3000	self cooled	without
B10.68J	190	91.10	2000	air cooled	without
B10.68J	190	91.10	2000	air cooled	with
B10.68J	190	91.10	3000	air cooled	with
B10.68J	190	91.10	3000	air cooled	without
B10.62Q	190	93.00	1500	air cooled	with
B10.62Q	190	93.00	1500	air cooled	without
B10.62Q	190	93.00	3000	air cooled	with
B10.62Q	190	93.00	3000	air cooled	without
B10.CAQ	190	105.00	1500	self cooled	with
B10.CAQ	190	105.00	1500	self cooled	without
B10.CAQ	190	105.00	3000	self cooled	with
B10.CAQ	190	105.00	3000	self cooled	without
B10.80J	190	108.00	2000	air cooled	with
B10.80J	190	108.00	2000	air cooled	without
B10.80J	190	108.00	3000	air cooled	with
B10.80J	190	108.00	3000	air cooled	without
B10.72Q	190	110.00	1500	air cooled	with
B10.72Q	190	110.00	1500	air cooled	without
B10.72Q	190	110.00	3000	air cooled	with
B10.72Q	190	110.00	3000	air cooled	without
B10.90Q	190	135.00	1500	air cooled	with
B10.90Q	190	135.00	1500	air cooled	without
B10.90Q	190	135.00	3000	air cooled	with
B10.90Q	190	135.00	3000	air cooled	without
B10.CAQ	190	160.00	1500	air cooled	with
B10.CAQ	190	160.00	1500	air cooled	without
B10.CAQ	190	160.00	3000	air cooled	with
B10.CAQ	190	160.00	3000	air cooled	without
B13.42I	240	42.00	1500	self cooled	with
B13.42I	240	42.00	1500	self cooled	without
B13.42I	240	42.00	2000	self cooled	with
B13.42I	240	42.00	2000	self cooled	without
B13.42I	240	42.00	3000	self cooled	with
B13.42I	240	42.00	3000	self cooled	without
B13.58I	240	58.00	1500	self cooled	with
B13.58I	240	58.00	1500	self cooled	without
B13.58I	240	58.00	2000	self cooled	with
B13.58I	240	58.00	2000	self cooled	without
B13.58I	240	58.00	3000	self cooled	with
B13.58I	240	58.00	3000	self cooled	without
B13.42I	240	61.00	1500	air cooled	with
B13.42I	240	61.00	1500	air cooled	without
B13.42I	240	61.00	2000	air cooled	with
B13.42I	240	61.00	2000	air cooled	without
B13.42I	240	61.00	3000	air cooled	with
B13.42I	240	61.00	3000	air cooled	without
B13.73I	240	73.00	1500	self cooled	with
B13.73I	240	73.00	1500	self cooled	without
B13.73I	240	73.00	2000	self cooled	with
B13.73I	240	73.00	2000	self cooled	without
B13.73I	240	73.00	3000	self cooled	with
B13.73I	240	73.00	3000	self cooled	without
B13.81I	240	81.00	1500	self cooled	with
B13.81I	240	81.00	1500	self cooled	without
B13.81I	240	81.00	2000	self cooled	with
B13.81I	240	81.00	2000	self cooled	without
B13.81I	240	81.00	3000	self cooled	with
B13.81I	240	81.00	3000	self cooled	without
B13.58I	240	84.00	1500	air cooled	with
B13.58I	240	84.00	1500	air cooled	without
B13.58I	240	84.00	2000	air cooled	with
B13.58I	240	84.00	2000	air cooled	without
B13.58I	240	84.00	3000	air cooled	with
B13.58I	240	84.00	3000	air cooled	without
B13.98I	240	98.00	1500	self cooled	with
B13.98I	240	98.00	1500	self cooled	without
B13.98I	240	98.00	2000	self cooled	with
B13.98I	240	98.00	2000	self cooled	without
B13.98I	240	98.00	3000	self cooled	with
B13.98I	240	98.00	3000	self cooled	without
B13.73I	240	105.00	1500	air cooled	with
B13.73I	240	105.00	1500	air cooled	without
B13.73I	240	105.00	2000	air cooled	with
B13.73I	240	105.00	2000	air cooled	without
B13.73I	240	105.00	3000	air cooled	with
B13.73I	240	105.00	3000	air cooled	without
B13.81I	240	116.00	1500	air cooled	with
B13.81I	240	116.00	1500	air cooled	without
B13.81I	240	116.00	2000	air cooled	with
B13.81I	240	116.00	2000	air cooled	without
B13.81I	240	116.00	3000	air cooled	with
B13.81I	240	116.00	3000	air cooled	without
B13.C2I	240	120.00	1500	self cooled	with
B13.C2I	240	120.00	1500	self cooled	without
B13.C2I	240	120.00	2000	self cooled	with
B13.C2I	240	120.00	2000	self cooled	without
B13.C2I	240	120.00	3000	self cooled	with
B13.C2I	240	120.00	3000	self cooled	without
B13.98I	240	136.00	1500	air cooled	with
B13.98I	240	136.00	1500	air cooled	without
B13.98I	240	136.00	2000	air cooled	with
B13.98I	240	136.00	2000	air cooled	without
B13.C2I	240	162.00	1500	air cooled	with
B13.C2I	240	162.00	1500	air cooled	without
B13.C2I	240	162.00	2000	air cooled	with
B13.C2I	240	162.00	2000	air cooled	without
B16.C4Q	270	140.00	1500	self cooled	without
B16.C4Q	270	140.00	2000	self cooled	without
B16.C4Q	270	140.00	3000	self cooled	without
B16.C8Q	270	180.00	1500	self cooled	without
B16.C4Q	270	180.00	1500	air cooled	without
B16.C8Q	270	180.00	2000	self cooled	without
B16.C4Q	270	180.00	2000	air cooled	without
B16.C8Q	270	180.00	3000	self cooled	without
B16.C4Q	270	180.00	3000	air cooled	without
B16.C8Q	270	234.00	1500	air cooled	without
B16.C8Q	270	234.00	2000	air cooled	without
B16.C8Q	270	234.00	3000	air cooled	without
B16.B4Q	270	240.00	1500	self cooled	without
B16.B4Q	270	240.00	2000	self cooled	without
B16.B4Q	270	240.00	3000	self cooled	without
B16.300Q	270	300.00	1500	self cooled	without
B16.300Q	270	300.00	2000	self cooled	without
B16.300Q	270	300.00	2500	self cooled	without
B16.B4Q	270	312.00	1500	air cooled	without
B16.B4Q	270	312.00	2000	air cooled	without
B16.B4Q	270	312.00	3000	air cooled	without
B16.300Q	270	390.00	1500	air cooled	without
B16.300Q	270	390.00	2000	air cooled	without
B16.300Q	270	390.00	2500	air cooled	without

TECHNICAL FAQS

How does low inertia influence motion performance?

Low rotor inertia improves acceleration and deceleration capability while maintaining control stability. This results in faster cycle times, reduced settling time, and precise positioning, especially in applications requiring frequent speed changes or dynamic motion profiles.

How should torque range be selected for an application?

Torque selection should consider peak torque during acceleration, continuous torque, duty cycle, and load inertia. The wide torque range from 0.5 Nm to 42 Nm allows engineers to select a motor that meets application demands without oversizing, supporting efficiency and long-term reliability.

What factors influence the choice of feedback option?

Feedback selection directly affects positioning accuracy, control stability, and system integration. Resolvers are often preferred for robustness in harsh environments, while digital encoders such as Hiperface and Hiperface DSL support higher resolution, advanced diagnostics, and simplified wiring when used with compatible drives.

When should a holding brake be selected?

Holding brakes are typically used in vertical axes or applications where the load must be safely held when power is removed. For horizontal axes or systems with external holding mechanisms, non-brake versions may be sufficient.

How does duty cycle impact motor sizing?

Applications with frequent acceleration, high peak torque, or continuous operation generate higher thermal loads. Evaluating the duty cycle ensures the selected motor operates within thermal limits, preventing overheating and ensuring stable performance over the motor’s service life.

What defines the Preferred Servo Motors range?

The Preferred Servo Motors range consists of predefined servo motor configurations developed to cover the most common industrial motion requirements. It is a reduced and standardized subset of Lafert’s wider brushless servo motors range, designed to offer faster availability while maintaining the same core performance principles. By standardizing motor sizes, torque ranges, feedback options, and mechanical variants, the range enables faster selection and shorter delivery times while maintaining consistent motion performance.

Why are Preferred Servo Motors suitable for a wide range of applications?

The range combines low inertia design with multiple torque levels and flexible feedback options, allowing it to support applications with varying dynamic, speed, and positioning requirements. Although it represents a limited selection compared to the fully configurable Lafert servo portfolio, it covers the majority of standard industrial motion needs.

How does standardization help reduce delivery time?

By limiting the range to predefined, high-demand configurations, manufacturing and logistics processes are optimized. This allows Preferred Servo Motors to be supplied with shorter lead times compared to fully customized variants, without compromising application compatibility or performance.

What trade-offs should be considered when selecting a Preferred Servo Motor?

Engineers should balance dynamic performance, thermal behavior, feedback resolution, mechanical constraints, and delivery time. The Preferred range is designed to optimize this balance by offering proven configurations that meet most industrial requirements without unnecessary complexity.

Brushless Servo Motors

SERVO MOTORS - PREFERRED

High dynamic servo performance with standardized configurations and reduced delivery time

TORQUE

SQUARE FLANGE

SPEED

FRAME SIZE

STANDARD SPECIFICATIONS

options

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