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3700-CNC CNC-Ready 4″ Rotary Table


CNC-Ready 4″ Rotary Table with Stepper Motor Mount

SKU: 3700-CNC Category:

Product Description

About the CNC-Ready 4″ Rotary Table

Sherline has taken its P/N 3700 manual 4″ rotary table and applied a stepper motor mount with dampened coupling in place of the handwheel. The mount accepts a NEMA #23 frame size stepper motor for CNC control. This allows the table to be used as a 4th axis with CNC systems that have the capability to drive a rotary axis.

This table is also available as P/N 8700, which includes a stepper motor and a self-contained CNC controller for use as a stand-alone CNC indexer.

NOTE: We are stating the following weight limits for our rotary tables for continual use.

  • Horizontal orientation—50 lbs.
  • Vertical orientation—30 lbs.
  • Vertical rotational torque—6 foot/lbs. (meaning it can lift a 6 lb. weight when suspended 12″ away from the center of the rotary table)

The rotary tables can hold more weight when they are not under a continuous load. Click on the Video tab above to see examples of different weights and uses for our rotary tables.

NOTE: CNC-ready machines cannot be operated manually until stepper motors are installed.

Use in laser marking systems

Sherline’s rotary table offers an accurate, stable platform for rotary laser marking applications. Its compact size makes it a good fit in small enclosures. See this YouTube link for a video of a Sherline CNC-ready rotary table in use in a laser marking application on a round part, illustrating the difference between trying to mark on a round part without rotating it vs. rotating it. The video is from Jimani Inc. Laser Marking Systems who use a high-speed motor to drive the table. A Sherline chuck holds the part. A second YouTube video from Jimani shows a typical round part marking operation from start to finish.

NOTE: Because components of the table are ground as a set during production, the P/N 3700 rotary table cannot be upgraded to the P/N 3700-CNC version later on. A new rotary table with stepper motor worm housing must be purchased.

Other Purchasing Options:

3700-CNC-OP CNC-Ready 4″ Reverse Rotary
8700 CNC Rotary Table w/ Stepper Motor and Controller

The improper use of machine tools and their accessories can result in serious injury. Before using this tool, thoroughly read the instructions and make sure you understand its proper and safe use.


Always wear safety glasses when operating machine tools.

Download PDF 3700 CNC Instructions

Instructions PDF Download

CNC Rotary Table in Action

10930 3/8″ Bearing
12050 8-32 x 3/8″ SHC Screw
12070 9/64 Hex Key
3058 4-Jaw Hold Down Set Assembly
37090 R.T. Chuck Adapter Assembly
37111 CNC Rotary Table w/Worm Housing Assembly
37123 CNC Rt Coupling
37124 CNC Rt Coupling Adapter
37131 CNC Worm Shaft
37150 Oil Plug
37160 Preload Nut
37170 Rt Lock Pin-Hardened
37200 10-32 x 3/8″ Button SHC Screw
37220 6-32 x 1/4″ Button Hd SHC Screw
40050 Y-axis Handwheel (Crosslide) Assembly
40420 Headstock Bearing
40520 10-32 x 3/16 Cup Pt Set Screw
40530 5-40 x 3/8″ SHC Screw
40540 5/16-18 x 3/4″ Cone Point Set Screw
40660 #10 Washer 3/16
40670 10-32 x 1/2″ SHC Screw
50120 Back Lash Lock Pointer
87510 Rotary Table Stepper Motor Mount Assembly