Thread rolling machine 740E

high-precision

Overview
The Tesker Model 740E is an Ultra Ridged Loadcell-constructed 2-die thread rolling machine designed for infeed and thrufeed operations. It accommodates economically sized dies for lower tooling cost while handling heavy-duty rolling requirements.

Standard Equipment

• Servo drive: High-accuracy independent control of spindle drive axis with reduced components and maintenance. Radial die line-up via motor control from the HMI.
• Front "L" support with front bar feed fixture: Adjustable work-holding fixture that attaches to the front of the machine.
• Spring-loaded rear stop assembly with base: Positions parts for infeed rolling and allows slight movement via spring preload.
• Versa III automatic oil lubrication system: Automatic feed slide lubrication.
• Hydraulic slow-release valve: Gradually releases rolling force during heavy rolling to prevent thread deformation.
• Spindle RPM tachometer: Displays spindle RPM.

Available Options

• Radial die line-up coupling: Permits separate rotational adjustment between spindles for matching infeed or helical slow-feed dies when required.
• Enclosed toe-in indicator: Provides a reference to adjust the left main head die for part taper.
• Center stands (set of 2): Supports the center tube.
• Center support tube (one per size): Channels parts out the back of the machine; one required per size.
• Air balancer jib crane: Assists during changeover of large dies.
• Feeding and receiving fixtures: Custom-designed fixtures for specific part handling needs.

Technical specifications

• Type: Infeed & Thrufeed
• Capacity: 8" (203 mm)
• Rolling pressure: Adjustable up to 340,000 lb
• Spindle drive motor: 75 HP
• Hydraulic motor: 20 HP, reservoir capacity 80 gal
• Coolant motor: 3/4 HP, reservoir capacity 200 gal
• Dies maximum diameter: 12" (305 mm)
• Dies maximum face width: 12" (305 mm)
• Spindle size: 4-3/4" (other sizes available)
• Spindle speeds: Variable (RPM 5–70; other speeds available)
• Floor dimensions (W×L×H incl. crane): 158" × 155" × 106"
• Weight: 46,000 lb
• Electrical: Wired to NFPA 79 standards for 240 or 480 V, 3-phase, 60 Hz. Other voltages available.
• Notes: Specifications subject to change; additional fixturing and guards may be required depending on the job.