Prayosha Enterprise is a premier manufacturer and exporter of high-precision CNC Thread Grinding Machines, engineered for extreme accuracy in single and multi-start thread grinding operations.

Equipped with advanced multi-axis CNC technology, our thread grinding machines deliver sub-micron pitch accuracy, excellent lead precision, and ultra-smooth surface finishes on hardened steel shafts, lead screws, and worms.

Featuring automatic diamond wheel dressing and CNC coordinate wear compensation, the machine maintains constant peripheral grinding speeds and profile fidelity during continuous production cycles.

The heavy-duty stress-relieved Meehanite cast-iron bed absorbs grinding forces and dampens dynamic vibrations, ensuring zero deflection and long-term operational stability.

Widely utilized across automotive, aerospace, machine tool, and defense sectors, our CNC thread grinders offer fast setup times, intuitive touch controls, and exceptional cost-efficiency.

Features:

  • High static and dynamic stiffness
  • Automatic balancing
  • Auto wheel dressing compensation.
CNC Thread Grinding Machine
CNC Thread Grinding Machine

CNC Thread Grinding Machine Technical Specification

CAPACITY   CTH 300
Center Height mm 300
Distance Between Centers mm 125
Max. Swivel of Head Deg. + 45 , - 45
Table Speed infinitely Variable M / min 10
Grinding Wheel (d X w X b) mm 20 X 20 X 31.75
Wheel head rapid approach mm 1000
Grinding Wheel Speed RPM 2800
Manual Feed Resolution mm 0.001
No.of Work Head Speed RPM Variable
Work Head Swivel Deg. + 60 , - 60
Wheel Head Swivel With Servo   Steady
Work Head Center MT 3
Tail Stock center MT 3
Work Head Motor KW 1.5
Wheel Head Motor HP 2
Coolant Pump HP 0.16
Longitudinal Travel (with ball screw) KW 2
Controller   Siemens / Mitsubishi

Advantages of CNC Thread Grinding Machine

  • Micron-Level Thread Accuracy: Delivers ultra-precise thread pitch, profile geometry, and lead tolerances on precision lead screws, worms, taps, and ball screws.
  • Automated Wheel Dressing & Compensation: Integrated diamond wheel dresser with automatic CNC coordinate compensation maintains exact wheel profiles for continuous production runs.
  • Superior Surface Integrity: High-speed grinding with coolant flushing eliminates micro-cracks, surface burrs, and thermal stress on hardened alloy steels.
  • High Thermal & Dynamic Rigidity: Premium heavy cast-iron bed dampens grinding vibrations and absorbs heavy cutting forces under continuous operation.
  • Reduced Setup & Faster Cycle Times: Multi-axis CNC programming facilitates rapid job changeover, automatic multi-pass thread grinding, and reduced human error.
  • Versatile Thread Profile Capabilities: Effortlessly grinds ACME, Metric, Trapezoidal, Whitworth, and custom thread profiles across various component lengths.
  • Consistent High-Volume Repeatability: CNC automation guarantees identical thread precision and finish quality across high-volume production batches.

FAQ'S Of CNC Thread Grinding Machine

1. What is a CNC Thread Grinding Machine? +A CNC Thread Grinding Machine is a precision machine used to grind threads on components with high accuracy using computer numerical control (CNC) technology.
2. What are the main applications of a CNC Thread Grinding Machine? +It is widely used in industries like automotive, aerospace, and manufacturing for producing precision threads on screws, worms, shafts, and other critical components.
3. What are the advantages of using CNC thread grinding over conventional methods? +CNC thread grinding offers higher precision, better surface finish, consistent quality, automation, and reduced human error compared to traditional machining methods.
4. What materials can be processed using a CNC Thread Grinding Machine? +These machines can grind a variety of materials including hardened steel, stainless steel, alloys, and other high-strength materials.
5. How does a CNC Thread Grinding Machine work? +The machine uses a rotating grinding wheel to remove material from the workpiece while following programmed CNC instructions to achieve accurate thread profiles.
6. How do you maintain a CNC Thread Grinding Machine? +Regular maintenance includes proper lubrication, checking alignment, inspecting grinding wheels, cleaning the machine, and updating CNC programs to ensure optimal performance and long service life.
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