Cumark CNC Spindle Variable Frequency Drive VFD Frequency Inverter AC Drive Frequency Converter for Spindle Motor

• Customization: Available
• Application: High-performance Transducer, Three Phase Transducer, High Frequency Converter Transducer
• Output Type: Triple
• Model NO.: ES850S
• Principle of Work: Open Loop Vector /Closed Loop Vector
• Switch Mode: PWM Control
• Main Circuit Type: Current
• Voltage of Power Supply: Low Voltage Variable-Frequency Drive
• Link of Transformation: AC-DC-AC Variable-Frequency Drive
• Nature of DC Power: Current Variable-Frequency Drive
• Function: Elevator Special, Constant Torque Universal Type, CNC Machine
• Brand: Cumark
• Condition: 100% Original
• Sample: Approval
• Warranty: 20 Months
• Shipping Term: TNT DHL FedEx EMS UPS
• Lead Time: 7-12 Days
• Payment Term: Trade Assurance Tt \Western Union
• Service: OEM/ODM
• Certificate: CE ISO9001 CCC
• Phase: 3-Phase
• Power Range: 0.75-710kw
• Prcie Term: Fob CIF
• Name: Frequency Converter
• After-Service: Yes
• Transport Package: Cartons/Wooden Cases
• Specification: 65*38*37CM
• Trademark: CUMARK
• Origin: China
• HS Code: 8504409999
• Production Capacity: 2000PCS/Month
• Package Size: 65.00cm * 38.00cm * 37.00cm
• Package Gross Weight: 22.000kg

Product Description

Product Description

Product Overview

Cumark ES850S is a high-performance AC drive (VFD) specially designed for CNC machine tools and industrial automation applications. With a wide power range from 0.75 kW to 710 kW and three-phase 380V input, ES850S delivers precise speed and torque control for demanding machining processes.

Supporting both open-loop vector control and closed-loop vector control, ES850S meets the requirements of high-speed, high-precision, and high-reliability CNC equipment. An intuitive LCD keypad enables fast commissioning and easy parameter monitoring.

Wide Power Range for CNC Applications
Power range: 0.75 kW – 710 kW
Rated voltage: Three-phase 380V
Suitable for small CNC machines up to large machining centers
One drive platform covers multiple CNC machine models, reducing inventory and selection cost.

Advanced Vector Control Technology
Open-loop vector control (SVC) for stable speed control
Closed-loop vector control (FVC) with encoder feedback for high precision
Excellent low-speed torque and fast dynamic response
Ideal for spindle drives, feed axes, and auxiliary motors in CNC systems.

CNC-Oriented Functional Design
User-Friendly LCD Keypad
Clear LCD display for parameters and operating status
Easy parameter setting and fault diagnosis
Supports multi-language interface
Reduces commissioning time and simplifies on-site debugging.

Flexible Control & Communication
Multiple digital and analog I/O
Standard RS485 communication (Modbus)
Easy integration with CNC controllers and automation systems

Comprehensive Protection Functions
Overcurrent protection
Overvoltage and undervoltage protection
Overload protection
Overheat protection
Phase loss protection
Encoder fault protection (closed-loop mode)
Designed for long-term stable operation in industrial environments.

Typical CNC Applications
CNC machining centers
CNC lathes
Milling machines
Drilling and tapping machines
Grinding machines
CNC spindle and feed drive systems

Engineering & Installation Features
Robust industrial design
Efficient cooling system for continuous operation
Supports high-frequency operation for spindle applications
Suitable for centralized control cabinets

Why Choose Cumark ES850S for CNC Machines
Wide power coverage from 0.75–710 kW
Support both open-loop and closed-loop vector control
High precision and fast dynamic response
Easy commissioning with LCD keypad
Proven reliability for CNC and machine tool applications

Specification

Packing & Delivery

Packing & Delivery

Packaging:repackaged in export standard cartons or wooden box (Cartons for inverters under 45 k, woden box for inverters over45 kW), with internal foam protection Each inverter is wellprotected to avoid damage during transportation. OEM packaging, private label and customized
cartons are supported
Shipping:
By sea, by air or by express (DHL, FedEx, UPS, TNT).
Shipping terms: EXW, FOB, CIF, DDP available.
Delivery Time:
Samples: 3-5 working days
Mass production: 7-15 working days

Certifications

Packaging & Shipping

After Sales Service

After Sales Service

Warranty: We offer 20 Months free warranty service.
Technical Support: We provide 24-hour phone and online technical support, ensuring quick response to customer needs.
On-Site Service: Upon request, we can dispatch technicians to provide on-site services, including installation, commissioning, and maintenance.

Company Profile

FAQ

FAQ

Q1,who are we?

Cumark, founded in 2001, is a professional AC drive manufacturer covering LV(110/220/400/690V) & MV(3.3/6.6/11kV). 

 
Q2, how can we guarantee quality?
A: Quality is our top priority. We implement strict quality control from start to finish. Every product is fully assembled and carefully tested before packaging and shipping.
 
Q3,How is the production capacity of your factory? 
Our production capacity is 2000 units per month.
 
Q4.What services do you provide?
A: We offer OEM & ODM services and 24/7 after-sales support. Our professional R&D and technical teams ensure reliable product development and technical assistance.