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Motor Power Company
SKA COMPACT all in one linear axes.

SKA COMPACT all in one linear axes.

Product catalog summary

Overview

The SKA COMPACT series represents a range of iron core linear axes designed for high flexibility and performance in industrial automation. These "all-in-one" linear axes integrate the linear motor, moving head, cable carrier, and feedback systems into a compact, sealed aluminum structure.

Main Features

Three sizes available with aluminum carrying structure.
Preassembled power components including moving coil, magnetic track, thermal sensor, linear guideways, encoder, stroke stopper, cables, and cable carrier.
Fully sealed mechanical components for high protection.
Optional safety brake available.
Payload capacity suitable for mounting on any extruded structure side and orientation.
Continuous force options: 275N and 550N; Peak force options: 825N and 1650N.
Maximum speed up to 5 m/s and acceleration up to 50 m/s² (5g).
Positioning accuracy between 0.01 mm and 0.1 mm.
Feedback options include optical and magnetic encoders, Hall sensors, Sin-Cos, TTL, and absolute encoders.

Models and Ordering

Two main models are offered:

SKA C 140.275: Continuous force 275N, peak force 825N.
SKA C 140.550: Continuous force 550N, peak force 1650N.

Stroke lengths range from 500 mm to 3000 mm in 500 mm increments. Ordering codes specify series, model, winding, stroke, encoder type, feedback, and connectors.

Encoder and Feedback Options

Multiple encoder types are available with detailed specifications:

TTL Magnetic Encoders: Resolutions 1-10 µm, max speed up to 2 m/s, rated voltage 5 Vdc ±2.5%, operating temperature 0-50°C.
TTL Optical Encoders: Various pitches (40 µm, 200 µm), resolutions 1-10 µm, max speeds up to 9-10 m/s, rated voltage 5 Vdc ±5%, operating temperature 0-50°C.
Sin-Cos Optical Encoders: Pitches 40 µm and 200 µm, accuracy ±5 to ±30 µm/m, max speed dependent on interpolator, rated voltage 5 Vdc ±5%, operating temperature 0-50°C.
Hall Sensors: Rated voltage 5-24 Vdc, operating temperature -20°C to +100°C, 3 commutation signals.

Electrical and Mechanical Specifications

Detailed motor parameters for both models include:

Voltage constants (Ke) ranging from 55 to 116 Vrms/m/s.
Force constants (Kf) from 91 to 192 N/Arms.
Rated currents and peak currents specified per winding type.
Phase resistance and inductance values at 20°C.
Thermal protection with normally closed thermal cut-off rated at 250 Vac, 2.5 A, operative temperature 130°C ±5%, reset temperature 100°C ±15°C.
Insulation class F.
Moving head weights vary from 2 to 12 kg depending on model and configuration.

Cabling and Connectors

Power and feedback cables are specified for dynamic applications with details on construction, electrical characteristics, and compliance:

Power Cable: 4G1.5 + 4x0.25 mm², polyurethane jacket, max speed 100 m/min, max acceleration 4 m/s², rated voltage 1000 V, UL compliant.
Feedback Cable: 8x2xAWG28 twisted pairs, polyurethane jacket, max speed 100 m/min, max acceleration 4 m/s², rated voltage 300 V, characteristic impedance 100 Ω, UL compliant.

Connectors include M23 8-pin for power and 17-pin for feedback with detailed pin assignments for phases, brake, thermal protection, and encoder signals.

Mechanical Dimensions and Installation

Overall dimensions and mounting details are provided, including stroke length calculations and mounting hole positions. The linear axes can be mounted in various orientations due to their flexible design.

Critical Parameters and Recommendations

Operating temperature range: 0°C to 40°C for motor; feedback components up to 50°C; Hall sensors up to 100°C.
Thermal protection is essential to prevent overheating; thermal cut-offs are integrated.
Maximum speed and acceleration limits must be respected to ensure performance and longevity.
Encoder selection should match application speed and accuracy requirements.
Cabling must comply with bending radius and environmental conditions for reliable operation.

Summary

The SKA COMPACT linear axes offer a robust, flexible, and integrated solution for precise linear motion applications. With multiple force ratings, encoder options, and comprehensive cabling/connectivity solutions, they are suitable for a wide range of industrial automation tasks requiring high speed, acceleration, and accuracy.

Catalog excerpts

Open the catalog to page 1

SKA COMPACT Cutting-edge all in one linear axis based on iron core technology. A range of three sizes with aluminium carrying structure. The power components, moving coil and magnetic track, are preassembled and equipped with thermal sensor, moving head, linear guideways, encoder, stroke stopper, cables and cable carrier. A flexible motor payload capacity allows its fitting on any extruded structure side and in any direction. m m m m m 275N and 550N continuous force (825N and 1650N peak force) 5m/s speed 5g (50m/s2) acceleration 0,01 to 0,1 mm accuracy All mechanical components are completely...

Open the catalog to page 2

Series name 00 Without Hall Sensor 01 With Hall Sensor 006 TTL magnetic encoder 2 µm/P 2mm Max speed 2m/sec 007 TTL magnetic encoder 10 µm/P 2mm Max speed 4m/sec Moving head from 500 to 3000mm 500mm pitch Protection cover 008 TTL optical encoder 5 µm/P 200µm Max speed 9m/sec Linear guideways 015 Sin-Cos optical encoder P 40µm Stroke stopper Rubber bumpers Aluminium extruded profile Connectors 019 TTL optical encoder 1 µm/P 200µm Max speed 3m/sec Cable carrier chain with dynamic laying cables 021 Sin-Cos optical encoder P 200µm Max speed 10m/sec 026 TTL optical encoder 1 µm/P 40µm Max speed 3m/sec...

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IRON CORE LINEAR AXES “ALL IN ONE” SERIES TRANSDUCER SERIES PAGE 1 TTL OPTICAL ENCODER P200µm (FEEDBACK ORDER NR. 008 - 019 - 028) RATED VOLTAGE RATED CURRENT MAX OUTPUT FREQUENCY WORKING TEMPERATURE ELECTRONIC TYPE ZERO PULSE RESOLUTION ACCURACY OPTICAL LINE PITCH MAX SPEED 5 ± 5% 120 5 0° ÷ + 50° LINE DRIVER AM 26 LS32 STANDARD 1 - 5 - 10 ± 30 µm/m 200 It depends of resolution SIN COS OPTICAL ENCODER P200µm (FEEDBACK ORDER NR. 021) RATED VOLTAGE RATED CURRENT MAX OUTPUT FREQUENCY WORKING TEMPERATURE SIGNAL TYPE ZERO PULSE RESOLUTION ACCURACY OPTICAL LINE PITCH MAX SPEED 5 ± 5% 120 50 0° ÷ +...

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IRON CORE LINEAR AXES “ALL IN ONE” SERIES TRANSDUCER SERIES PAGE 2 SIN COS OPTICAL ENCODER P40µm (FEEDBACK ORDER NR. 015) RATED VOLTAGE RATED CURRENT MAX OUTPUT FREQUENCY WORKING TEMPERATURE SIGNAL TYPE ZERO PULSE RESOLUTION ACCURACY OPTICAL LINE PITCH MAX SPEED TTL MAGNETIC ENCODER ( FEEDBACK ORDER NR. 006 – 007 - 024) RATED VOLTAGE RATED CURRENT MAX OUTPUT FREQUENCY WORKING TEMPERATURE ELECTRONIC TYPE ZERO PULSE RESOLUTION ACCURACY MAGNETIC TAPE PITCH MAX SPEED HALL SENSOR RATED VOLTAGE RATED CURRENT WORKING TEMPERATURE N° OF COMMUTATION SIGNALS 5 ± 5% 120 250 0° ÷ + 50° 1 Vpp STANDARD Function...

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IRON CORE LINEAR AXES “ALL IN ONE” SERIES MOTOR RATINGS MOTOR SPEED Vn drive 3phase 230 V (ac) Vn drive 3phase 400 V (ac) FEATURES Voltage constant ± 5% Pole Pitch Temperature range SKAC. 140.275 Continuous force ( 0 m/s ) Peak force Force constant ± 5% Rated current ( 0 m/s ) Peak current Phase/phase res. ± 5% a 20°C Phase/phase inductance Electrical time constant Attractive force Dissipated power Thermal resistance Motor constant Moving head weight Type of thermal cut - off Rated voltage Rated current Operative temperature Resetting temperature Operative time Insulation class Fn0 [N] Fmax [N]...

Open the catalog to page 6

IRON CORE LINEAR AXES “ALL IN ONE” SERIES MOTOR RATINGS MOTOR SPEED Vn drive 3phase 230 V (ac) Vn drive 3phase 400 V (ac) FEATURES Voltage constant ± 5% Pole Pitch Temperature range SKAC. 140.550 Continuous force ( 0 m/s ) Peak force Force constant ± 5% Rated current ( 0 m/s ) Peak current Phase/phase res. ± 5% a 20°C Phase/phase inductance Electrical time constant Attractive force Dissipated power Thermal resistance Motor constant Moving head weight Type of thermal cut - off Rated voltage Rated current Operative temperature Resetting temperature Operative time Insulation class Fn0 [N] Fmax [N]...

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IRON CORE LINEAR AXES “ALL IN ONE” SERIES POWER CABLE DATA MOTOR POWER CABLE + THERMAL PROTECTION TECHNICAL DATA Description:…….……………FE(4G1,5+4x0,25)ccST/R-Pu Moving speed………..………..…………………..100 m/min Maximum acceleration………………….………….…4 m/s2 Outer Ø……...……...…………………………..….9 ± 0.2mm Minimum bending radius……………..…….…..…...10 x Ø Operating temperature :.…-20°C +80°C static application ……………………………..…...-5°C +80°C dynamic laying Rated voltage:...………….……………………..…….1000 V Test voltage:……………………………………………….3kV Max conductor resistance (20°): 0.25mm²…..80 Ω/km 1.5 mm²……..13,3 Ω/km Insulation: polyolefin,...

Open the catalog to page 8

IRON CORE LINEAR AXES “ALL IN ONE” SERIES SIGNAL CABLE FEEDBACK CABLE Insulation: polyolefin, couple colors DIN 47100, Ø outer 0.85mm Jacket : polyurethene compound, black RAL 9005 glazed Conductor : electrolytic copper braid not tinned, 16 wires (8 twisted pairs), AWG28 – 0.088mm² Shield jacket: full tinned copper, covered ≥85% Shield wire: tinned copper – 1 wire AWG 28 Insulation resistance: power: ≥20 Mohm. Km Motor Power Company s.r.l. - Reggio Emilia - Italy Tel +39 0522 682710 - Fax 0522 683552

Open the catalog to page 9

IRON CORE LINEAR AXES “ALL IN ONE” SERIES Power Cable 8pin M23 – Flying leads Phase U PE Phase W Phase V Grey Yellow/Green Brown Black Brake (optional) COLOR Red Black Thermal Protection (optional) Pin C D Motor Power Company s.r.l. - Reggio Emilia - Italy Tel +39 0522 682710 - Fax 0522 683552

Open the catalog to page 10

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