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Download PDF Assembly and Instruction Guide
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18" CNC-Ready Mill
18" CNC-Ready Mill with optional accessory package
18″ CNC-Ready Mill
The Sherline NexGen Benchtop Mill is the largest vertical milling machine we offer. As Sherline mills have become increasingly popular in industrial, laboratory, and educational settings, the need for a larger-capacity mill led to the development of the NexGen model. This benchtop mill features an expanded mill base, a longer crosslide table, and an extended column—providing greater work area and capability than our Deluxe 8-Direction Benchtop Mill (Series 2000/2100).
To fully support the extended travel of the column, we’ve increased the cross-section of the column base for added rigidity. To further improve stability during heavy cuts, the column arm no longer swings side to side. However, you still retain full flexibility with 90° rotation to the left and right, as well as in-and-out column movement—giving the NexGen mill a total of seven directions of adjustment, including X, Y, Z, and headstock rotation.
The NexGen mill is ideal for customers seeking a compact, high-precision mini mill for small parts. All Sherline milling machines are made in the USA and backed by exceptional customer support. Despite its small footprint, this 18″ benchtop mill delivers full-size machining accuracy. It’s capable of cutting wood, plastic, aluminum, and even steel with precision and rigidity.
CNC-ready mills come with factory-installed stepper motor mounts in place of handwheels and are ready for you to add your own stepper motors and CNC controls. Please note: these are not turn-key systems and cannot be operated until motors and controls are installed. CNC-ready machines do not include stepper motors, a computer, or CNC software.
Sherline recommends dual-shaft stepper motors so manual control is still possible using the included handwheels, which mount to the rear shaft once the motors are installed. Sherline also offers high-quality stepper motors and CNC components to complete your system.
Additionally, you can explore various aftermarket suppliers for compatible motors, drivers, and software. Visit our CNC Dealers page for a list of suppliers and links to their websites.
Note on Ordering a Metric Mill – Most Sherline cutting tool, such as center drills, are offered in fractional sizes. If you opt for a metric machine with metric collets or holders, you’ll need to order compatible fractional-size holders to use these tools effectively.
Standard Equipment for the 18″ NexGen Tabletop Mill
- A powerful 90V DC motor with electronic speed controller
- 18″ mill base with Y-axis leadscrew protection
- 2.75″ (70 mm) × 18.0″ (457 mm) extended mill table with two T-slots
- 7″ × 13″ tooling plate
- 15″ (63 mm) extended column bed
- Extra-rigid column base
- Resettable, zero-adjustable handwheels that can be mounted to the end of the stepper motors to maintain manual control when needed:
- (2) 2″ (51 mm) handwheels on X- and Y-axes
- (1) 2-1/2″ (63 mm) handwheel on Z-axis
- All with laser-engraved aluminum collars
- NOTE: CNC-ready machines cannot be operated manually unless double-shaft stepper motors are installed.
- ¼” Drill Chuck w/ key, #1 Morse arbor with drawbolt
- Pulleys, drive belt, three hexagonal keys, spindle bars, gib removal tool, eight-foot three-wire power cord, and instruction manual
- Oil reservoirs on the X/Y axes and the Z axis help keep critical parts lubricated. These were initially developed for CNC machines that run constantly for hours on end but can benefit manual machines as well
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| Max clearance (table to spindle) | 14.00″ (356 mm) |
|---|---|
| Throat (no spacer) | Adjustable |
| Throat (w/ headstock spacer) | Adjustable |
| Travel, “X” Axis | 13.65″ (347 mm) |
| Travel, “Y” Axis | 11 ″ (279 mm); 8.9″ (226 mm) with tooling plate attached |
| Travel, “Z” Axis | 5.38″ (137 mm) |
| Hole through spindle | .405″ (10 mm) |
| Spindle nose thread | 3/4″-16 T.P.I. |
| Spindle nose taper | #1 Morse |
| Handwheel graduations | .001″ (.01 mm) |
| Electronically controlled spindle speed range | 70 to 2800 RPM |
| Width Overall | 20.00 (508 mm) |
| Depth Overall | Base footprint: 20.625″ (524 mm); With fully extended brass leadscrew cover: 27.875″ (708 mm) |
| Height Overall (Max.) | 24.50″ (622 mm) |
| Table size | 2.75″ x 18.00″ (70 x 457 mm) |
| Hold-down provision | 3 T-Slots |
| Shipping Weight | 50 lb. (22.7 kg) |
| Movements in addition to X-, Y- and Z-axes | Headstock rotation 90° left/right |
| Column pivot | 90° forward/back |
| Column swing | 90° left/right |
| Column travel | (in/out) 5.5″ (140 mm) |
| Motor | 90 volt DC with electronic speed control that accepts any incoming current from 100VAC to 240 VAC, 50 Hz or 60 Hz. Click here for motor specifications |
| Spindle Speed Range | 70-2800 RPM continuously variable by electronic speed control |
*Overall dimensions include motor and speed control
Click on the link for the exploded view of the 5800-CNC/5810-CNC CNC-Ready Mill to help identify replacement parts.
If you are still uncertain please call our customer service representatives for help with this item.
 |  |  |  | |
|---|---|---|---|---|
| 5000 (5100) | 5400 (5410) | 2000 (2010) | 5800 (5810) | |
| Max. clearance (table to spindle) | 8.00″ (203 mm) | 8.00″ (203 mm) | 9.00″ (229 mm) | 14.00″ (356 mm) |
| Throat (no spacer) | 2.25″ (50 mm) | 2.25″ (50 mm) | Adjustable | Adjustable |
| Throat (w/ headstock spacer) | Optional | 3.50″ (90 mm) | Adjustable | Adjustable |
| Travel: X-axis (with stop) | 8.65″ (220 mm) | 8.65″ (220 mm) | 8.65″ (220 mm) | 13.65″ (347 mm) |
| Travel: Y-axis | 3.00″ (76 mm) | 5.00″ (127 mm) | 7.00″ (178 mm) | 11.00″ (279 mm) |
| Travel: Z-axis | 6.25″ (159 mm) | 6.25″ (159 mm) | 5.38″ (137 mm) | 9.38″ (238 mm) |
| Hole through spindle | .405″ (10 mm) | .405″ (10 mm) | .405″ (10 mm) | .405″ (10 mm) |
| Spindle nose thread | 3/4-16 T.P.I. | 3/4-16 T.P.I. | 3/4-16 T.P.I. | 3/4-16 T.P.I. |
| Spindle nose taper | #1 Morse | #1 Morse | #1 Morse | #1 Morse |
| Spindle runout of Morse taper | .0005″ or less | .0005″ or less | .0005″ or less | .0005″ or less |
| Handwheel graduations | .001″ (.01 mm) | .001″ (.01 mm) | .001″ (.01 mm) | .001″ (.01 mm) |
| Handwheel Type | Standard Handwheels | Zero Adjustable Handwheels (With the exception of DRO machines which come with DRO handwheels) | Zero Adjustable Handwheels (With the exception of DRO machines which come with DRO handwheels) | Zero Adjustable Handwheels (With the exception of DRO machines which come with DRO handwheels) |
| Electronically controlled spindle speed range | 70 to 2800 RPM | 70 to 2800 RPM | 70 to 2800 RPM | 70 to 2800 RPM |
| Width overall | 14.75″ (375 mm | 15.00″ (381 mm) | 15.00″ (381 mm) | 20.00 (508 mm) |
| Depth overall | 11.75″ (298 mm) | 14.00″ (356 mm) | 22.25″ (565 mm) | 23.13″ (588 mm) |
| Height overall (Max.) | 20.75″ (527 mm) | 20.75″ (527 mm) | 23.38″ (568 mm) | 24.50″ (622 mm) |
| Table size | 2.75″ x 13.00″ (70 mm x 330 mm) | 2.75″ x 13.00″ (70 mm x 330 mm) | 2.75″ x 13.00″ (70 mm x 330 mm) | 2.75″ x 18.00″ (70 x 457 mm) |
| Hold-down provision | 2 T-slots | 2 T-slots | 2 T-slots | 3 T-slots |
| Shipping weight | 33 lb (15.0 kg) | 36 lb (16.3 kg) | 38 lb (17.2 kg) | 50 lb. (22.7 kg) |
| Movements in addition to X-, Y- and Z-axes | Headstock rotation (90° L/R) | Headstock rotation (90° L/R) | Headstock rotation (90° L/R) | Headstock rotation (90° L/R) |
| Column rotation | N/A | N/A | (90° L/R) | N/A |
| Column pivot | N/A | N/A | (90° Fwd/Bk) | (90° Fwd/Bk) |
| Column swing | N/A | N/A | (90°L/R) | (90°L/R) |
| Column travel | N/A | N/A | (In/Out) 5.5″ (140 mm) | (In/Out) 5.5″ (140 mm) |
| Motor Specs | ||||
| Input voltage | 100 to 240 VAC, 50 or 60 Hz | |||
| Output to motor | 90 VDC | |||
| Current draw | .5 to 15 amps depending on load | |||
| No-load output shaft speed | 6000 RPM (no pulley) | |||
| Click here for more detailed specs | ||||
| Spindle Specs | ||||
| Spindle End play (factory adjustment of preload) | .0002″ (.005 mm) or less, normal pulleys | |||
| Runout at nose | .0005″ (0.013 mm) or less | |||
| Bearings | Two 20 mm lifetime lubricated ball bearings with adjustable preload | |||
Related products
CNC Rotary Table Indexer
Sherline has advanced its precision 4" rotary table into the 21st century with the addition of Computer Numerical Control (CNC). This upgrade makes it an ideal solution for clockmakers, gear cutters, and anyone needing to machine intricate radially symmetrical patterns. The CNC rotary table takes the complexity out of repetitive indexing tasks.
Complete, Stand-Alone System
Programming is done entirely through the integrated numeric keypad—no computer required. The system includes everything needed for operation:
4" Sherline rotary table with pre-installed stepper motor
Microprocessor unit with numeric keypad
115 VAC power supply (universal 110–240 VAC compatible)
All required connecting cables
Mounting Options
The rotary table includes clamps and T-nuts for mounting to the T-slots of a Sherline mill table. Additional options allow for flexible positioning:
Right-Angle Attachment: Holds the table vertically at a 2.7" center height. A matching right-angle tailstock is also available for supporting long workpieces.
Tilting Angle Table: Allows mounting at any angle from 0° to 90°. At 90°, the center height remains 2.7", compatible with the right-angle tailstock.
Simple, Accurate Operation
Simply enter the steps per revolution (or degrees per step) via the keypad. The table advances precisely to the next position at the press of a button. If needed, previous positions can be recalled instantly.
Resolution: 28,800 steps per revolution
Accuracy: ±0.006° per step
This precision allows for accurate machining of gears with odd numbers of teeth, and built-in calculations prevent cumulative errors.
Flexible Integration
This CNC rotary indexer is a complete, stand-alone unit—perfect for complex indexing operations. It can also integrate with other CNC systems:
Accepts input signals from an external CNC controller
Sends “completion” signals back to the master controller
Can be daisy-chained with other units for coordinated actions
For more advanced applications, the rotary table can be linked with Sherline’s linear controller (P/N 8800), enabling seamless combinations of rotary and linear motion—ideal for gear cutting and other multi-axis operations, all without requiring advanced CNC programming knowledge.
Weight Capacity (Continuous Use)
Horizontal orientation: 50 lbs
Vertical orientation: 30 lbs
Vertical rotational torque: 6 ft-lbs (e.g., able to lift a 6 lb. weight 12" from the center)
Note: The table can handle heavier loads if not under continuous use. Refer to the Video tab for practical examples.
Power Supply
The controller power supply operates on 110–240 VAC and automatically adjusts for global use. (Earlier models included a 110 VAC-only power supply.)
Compatibility with Tilting Angle Table (TAT) Limit Switches
For instructions on using the rotary table with limit switches on the TAT, see the “Instructions” tab and download the PDF titled MASSO Rotary Table Limit Switch Interference on the Tilting Angle Table.
Machinist’s Parallel Bar Set
Parallel bars are precision-ground spacers used to elevate a workpiece by a known height while maintaining perfect parallelism with the machine table. This set includes five matched pairs made from 1018 steel, each measuring 2-1/2" long and 1/16" thick, with the following heights: 1/4" • 3/8" • 1/2" • 5/8" • 3/4"
Unlike the imported parallels previously offered, these are manufactured in-house by Sherline. Each bar is waterjet cut from 1/16" 1018 steel, ground to precise height tolerances, and finished with a durable black oxide coating to resist corrosion. This set reflects Sherline’s commitment to accuracy, quality, and American-made craftsmanship.
