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770M Machine Specifications

Performance Expectations

Each machine ships with a Certificate of Inspection, which details quality assurance measurements performed by members of our quality assurance team prior to shipping.

Cutting Performance

This machine is capable of cutting a wide variety of materials (for information, see Intended Use) at or near their recommended feeds and speeds. Make sure that your workpiece is held as rigidly as possible and use the most rigid tooling available for roughing cuts. Verify that the programmed operations do not exceed the available spindle power.

Spindle Speed Range 

Two speed ranges are available: 

  • Low 175 rpm to 3250 rpm

  • High 525 rpm to 10,000 rpm

  • Spindle Power Rating 1.5 hp (1.1 kW)

  • Maximum Feed Rate 

    • X- and Y-Axis 135 IPM (3.43 m/min)

    • Z-Axis 110 IPM (2.7 m/min)

Resolution and Accuracy

Accuracy is heavily influenced by the techniques that the machinist uses. A skilled machinist can deliver accuracy that exceeds the specified accuracy from the manufacturer; an inexperienced machinist may have difficulty delivering the specified accuracy. We can't predict operator accuracy, but the specified accuracy is an important reference point.

Resolution 0.0001"

NOTE: The resolution of motion is the minimum discrete positional move.

  • Ball Screw Positional Accuracy ≤ 0.0006 in./ft

  • Positional Accuracy ≤ 0.0013 in./ft

NOTE: The positional accuracy includes additional contributing factors (like compressibility of bearings, ball screw windup, and friction).

Machine Specifications

Travels

X-Axis

14" (356 mm)

Y-Axis

7.5" (191 mm)

Z-Axis

13.25" (337 mm)

Spindle-to-Table Maximum Clearance

14.25" (362 mm)

Spindle Centerline to Machine Column

8.6" (218 mm)

Spindle

Spindle Power

1.5 hp (1.1 kW)

Spindle Maximum Speed

10,000 rpm

Transmission

Poly-V Belt

Spindle Taper

R8

Thread Machining

Tension/Compression, Auto-Reversing, Thread Mill

Maximum Feed Rate

X- and Y-Axis

135 IPM (3.43 m/min)

Z-Axis

110 IPM (2.7 m/min)

Axis Motor

Stepper Driven

Power

Primary Power Required

Single-Phase 115 Vac, 50/60 Hz

Recommended Circuit Amperage

Dedicated 15 A breaker

Table

Table Size

26" × 8" (660 mm × 203 mm)

T-Slot Size

5/8" (15.9 mm) (three slots)

Maximum Weight on Table

400 lb (181 kg)

Overall Dimensions

Machine Size

56" × 49" (1.4 m × 1.2 m)

Overall System Height

88" (2.2 m)

Typical System Weight

950 lb (431 kg)

Looking for more information?

This is a section of the 770M operator's manual. To view the whole manual, go to Tormach document UM10539.

If you have additional questions, we can help. Create a support ticket with Tormach Technical Support at tormach.com/how-to-submit-a-support-ticket for guidance on how to proceed.

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