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S4T Series Spindle Servo Driver 1.5kW-132kW for CNC Machines


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Product Description

Product Description

Product Overview

The SZGH S4T Series Spindle Servo Driver is designed for CNC spindle motor control from 1.5kW to 132kW. It provides stable speed control, strong torque output and reliable braking support for machine tool spindle systems.

Key Features

Wide power coverage for CNC spindle motor applications
Stable speed control for turning, milling, drilling and grinding
Strong torque response for cutting load changes
Recommended brake resistor data for safe deceleration design
Clear model selection based on motor power and rated current
Suitable for OEM machine builders, CNC retrofit teams and maintenance replacement

S4T Series Spindle Servo Driver 1.5kW-132kW for CNC Machines (2).jpg

Technical Specification Table

Model	Motor Power	Rated Current	Output Capacity	Brake Resistor	Cable
SZGH-S4T1P5	1.5kW	3.5A	2.5kVA	0.5kW / 75Ω	2.5mm²
SZGH-S4T2P2	2.2kW	5A	3.8kVA	0.5kW / 75Ω	2.5mm²
SZGH-S4T3P7	3.7kW	8A	5.6kVA	1kW / 40Ω	4mm²
SZGH-S4T5P5	5.5kW	13A	8.6kVA	1kW / 40Ω	6mm²
SZGH-S4T7P5	7.5kW	17A	11kVA	1.5kW / 32Ω	6mm²
SZGH-S4T011	11kW	25A	17kVA	1.5kW / 26Ω	6mm²
SZGH-S4T015	15kW	32A	20kVA	1.5kW / 26Ω	10mm²
SZGH-S4T018	18kW	39A	26kVA	2kW / 40Ω × 2	10mm²
SZGH-S4T022	22kW	45A	30kVA	2kW / 40Ω × 2	16mm²
SZGH-S4T030	30kW	60A	40kVA	2.5kW / 40Ω × 3	25mm²
SZGH-S4T037	37kW	75A	50kVA	2.5kW / 40Ω × 3	25mm²
SZGH-S4T045	45kW	90A	60kVA	2.5kW / 40Ω × 4	35mm²
SZGH-S4T055	55kW	110A	72kVA	2.5kW / 40Ω × 4	50mm²
SZGH-S4T075	75kW	150A	99kVA	2.5kW / 40Ω × 6	70mm²
SZGH-S4T090	90kW	178A	99kVA	2.5kW / 40Ω × 8	70mm²
SZGH-S4T110	110kW	210A	145kVA	2.5kW / 40Ω × 9	90mm²
SZGH-S4T132	132kW	255A	145kVA	2.5kW / 40Ω × 10	90mm²

Typical Applications

CNC lathe spindle control
CNC milling machine spindle drive
CNC drilling and tapping machine
CNC grinding machine
Machining center spindle system
Heavy-duty CNC machine retrofit
Special-purpose automation equipment

How to Choose the Correct Model

Match the driver power with the spindle motor rated power.
Check that the driver rated output current is suitable for the motor rated current.
Confirm the braking requirement based on spindle inertia and deceleration time.
Select cable diameter according to the recommended specification and installation distance.
Confirm controller command, encoder feedback and machine working condition before order.

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FAQ

What information is needed for model selection?

Please provide spindle motor power, rated voltage, rated current, rated speed, encoder feedback type, machine type and braking requirement.

Can SZGH help with wiring and parameter setting?

Yes. SZGH can provide wiring guidance, parameter setting suggestions and commissioning support for CNC spindle applications.

Is a brake resistor required?

A brake resistor is recommended for fast deceleration, frequent start-stop cycles or high-inertia spindle systems. Please select the resistor according to the model table and actual load.

Can this spindle servo driver be used for CNC retrofit projects?

Yes. The S4T series is suitable for new CNC machines and retrofit projects where stable spindle speed and stronger torque response are required.

Request a Quote

Send us your spindle motor nameplate, machine type and braking requirement. SZGH engineers will recommend the suitable S4T spindle servo driver model.