Pratt and Whitney 500 mm Thread Milling Machine

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Pratt and Whitney 500 mm Thread Milling Machine

Price 50000 INR/ Piece

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MOQ : 1 Piece

Pratt and Whitney 500 mm Thread Milling Machine Specification

Rotation
Left and Right hand threading capability

Model
Pratt & Whitney 500 mm

Product Type
Thread Milling Machine

General Use
Thread milling of shafts, spindles, pipes, and cylindrical components

Material
Cast Iron Base, Hardened Steel Components

Type
Horizontal Thread Milling

Capacity
500 mm maximum thread length

Weight (kg)
Approx. 2200 kg

Computerized
No

Automatic
Semi-Automatic operation

CNC Or Not
Not CNC

Control System
Manual Gear/Lever Control

Table Size
Approximately 700 mm x 250 mm

Table Slide Way
Hardened and ground

Floor Space
Approx. 1800 mm x 1400 mm

Spindle Speed
30-200 RPM (variable via gears)

Power
3 HP to 5 HP (main motor)

Voltage
415V / 3 Phase / 50 Hz

Dimension (L*W*H)
Approx. 2000 mm x 1600 mm x 1600 mm

Feature
Robust build, precise feed controls, multi-lead thread cutting

Color
Industrial Grey with Blue Accents (as shown)

Pratt and Whitney 500 mm Thread Milling Machine Trade Information

Minimum Order Quantity
1 Piece

Main Domestic Market
All India

About Pratt and Whitney 500 mm Thread Milling Machine

Make - Pratt & Whitney (USA)

Model - 6 x 20

Max. Job Diameter - 150 mm (6")

Max. Job Length - 500 mm (20")

Max. Cutter Diameter - 115 mm (4.5")

Spindle Bore - 101 mm (4")

Swing Diameter Over Bed - 400 mm (16")

No. of Indexes - 2, 3, 4, 6, 8, 12, 24

Cutter Swivel Angle - 90 degree to -42 degree

- Machine is in excellent working condition.

Video of The Machine -

https://youtu.be/Uyi3z9PuuvM

Versatile Thread Milling Capabilities

The machine is engineered to cut a wide range of thread typesfrom metric and Whitworth to Acme and NPTmaking it suitable for diverse industrial threading requirements. Change gears and thread milling heads facilitate multi-lead thread cutting, enhancing productivity in shaft, spindle, or pipe machining applications.

Robust Construction for Reliable Performance

The base is manufactured from cast iron for stability and vibration damping, while critical components are made of hardened steel for durability. The precision-ground leadscrew and hardened slide ways ensure accurate feed control, contributing to consistently high-quality threads and minimal maintenance over time.

Integrated Coolant and Accessory Support

The built-in recirculating coolant pump provides effective heat dissipation and chip evacuation during milling, supporting extended machine life. Included accessories like adjustable chucks, tool holders, and multiple change gears offer flexibility for various thread forms and job setups, making this machine a valuable asset for any workshop.

FAQs of Pratt and Whitney 500 mm Thread Milling Machine:

Q: How do you set the thread pitch on the Pratt & Whitney 500 mm Thread Milling Machine?

A: Thread pitch is adjusted by configuring the lead gearing system. Simply select and install the appropriate change gears, then verify the gear setting matches the desired pitchup to 8 mm depending on the specific lead gear combination used.

Q: What types of threads can this machine produce?

A: The machine is capable of milling metric, Whitworth, Acme, NPT, and other standard thread forms. It comes with necessary change gears and thread milling heads to accommodate various thread geometries for both left and right hand threading.

Q: When should the coolant system be used during operation?

A: Use the integrated recirculating coolant pump whenever thread milling is performed, especially on tougher materials, long threads, or during extended runs. It helps manage heat, improves finish quality, and prolongs tool life.

Q: Where can the Pratt & Whitney thread milling machine be installed considering its dimensions?

A: The machine requires a floor space approximately 1800 mm x 1400 mm and has overall dimensions near 2000 mm x 1600 mm x 1600 mm. Select an accessible, stable location with sufficient power supply (415V, 3 Phase, 50 Hz) for safe and effective installation.

Q: What is the process for changing between three-jaw and four-jaw chucks?

A: To change the chuck type, power down the machine and remove the existing chuck using the spindle lock mechanism. Install the preferred chuck as per your component requirementsboth three-jaw and four-jaw options are supported with this model for flexible component holding.

Q: How does semi-automatic operation benefit the user?

A: Semi-automatic operation combines manual gear/lever controls with automatic longitudinal feed, streamlining thread cutting while allowing operator oversight. This results in improved consistency, easier operation, and reduced physical strain compared to fully manual milling processes.

Q: What are the advantages of using precision ground components in this machine?

A: Precision-ground leadscrews and slide ways minimize wear and enable accurate feed control, ensuring that threads are produced to exact specifications and tolerances. This enhances the overall reliability and quality of thread milling operations.

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