What Can You Make on a Compact CNC Lathe? Typical Parts and Applications for the Mini-88 Series

A compact CNC lathe can be a practical solution for manufacturers producing small precision components, especially when the parts require consistent turning, drilling, boring, or threading within a limited machine footprint. However, not every small part requires the same machine configuration. A simple cylindrical component may only need standard turning operations, while another part of similar size may require off-center holes, cross drilling, or machining on both ends.

The Po Ly Gim Mini-88 Series includes three configurations designed for different machining requirements: the Mini-88, Mini-88Y, and Mini-88-25. This guide explores the types of parts these compact CNC lathes can produce, their machining size ranges, and how to select the appropriate model based on your part drawing and production process.

1. What Types of Parts Can a Compact CNC Lathe Produce?

A mini CNC lathe, also known as a small CNC lathe, is particularly useful for manufacturing components with relatively small diameters and short machining lengths.

Instead of selecting a machine based only on the industry it serves, manufacturers should first consider the geometry and machining features of the workpiece.

Common part types that may be suitable for a compact CNC lathe include:

Small Shafts and Pins

Small shafts and pins are widely used in mechanical assemblies, positioning mechanisms, and automation equipment.

Typical machining requirements may include:

• Outside diameter turning

• Stepped diameters

• Grooving

• Chamfering

• External threading

• End-face machining

For parts primarily requiring these turning operations, the Po Ly Gim Mini-88 Series provides a compact fixed-head CNC turning configuration.

Bushings, Sleeves, and Spacers

Bushings and sleeves often require both outside and inside diameter machining.

Typical operations include:

• Outside diameter turning

• Internal boring

• Drilling

• Facing

• Chamfering

• Internal or external threading

When the part is relatively short and can be securely held using a collet or chuck, a compact CNC lathe may provide an efficient machining solution.

Threaded Connectors and Fittings

Small connectors, fittings, and fastening-related components may combine turning with drilling and threading.

Depending on the part design, these components may require internal threads, external threads, stepped profiles, or additional holes.

For components with off-center or cross-drilled features, the Mini-88Y Compact CNC Lathe may be worth considering because it incorporates Y-axis movement and driven tooling.

Small Precision Components Requiring Two-Sided Machining

Some parts require operations on both the front and back faces.

For example, a component may require front-side turning and drilling, followed by back-side facing, boring, or other finishing operations.

When these operations are performed separately, the production process may involve additional workpiece handling and re-clamping.

The Mini-88-25 Compact Double Spindle CNC Lathe is designed to integrate front- and back-side machining through its main spindle and sub-spindle configuration.

Key Takeaway: The suitability of a compact CNC lathe depends not only on part size but also on the number, location, and sequence of machining operations.

2. What Part Sizes Can the Mini-88 Series Handle?

Before choosing a small CNC lathe, manufacturers should confirm whether the workpiece dimensions fall within the machine's machining capacity.

The Mini-88 Series offers different machining diameter and length capabilities depending on the model.

Specification	Mini-88	Mini-88Y	Mini-88-25
Maximum machining diameter	Ø60 mm with 3-jaw chuck / Ø26 mm with collet	Ø25 mm	Ø80 mm
Bar capacity	Ø26 mm	Ø26 mm	Ø26 mm
Maximum machining length	3 × bar diameter	3 × bar diameter	220 mm
Maximum main spindle speed	5,000 rpm	6,000 rpm	6,000 rpm
Main configuration	Gang-type tooling; optional servo turret	Y-axis with stationary and driven tools	Double spindles with 8-station servo turret

Specifications are based on Po Ly Gim's published product information. Actual machining suitability depends on workpiece geometry, material, workholding, tooling, and operating conditions.

Understanding Machining Diameter vs. Bar Capacity

Two specifications are particularly important when evaluating a mini CNC lathe.

Maximum machining diameter refers to the size of workpiece the machine is designed to accommodate under the specified configuration.

Bar capacity refers to the maximum bar diameter that can pass through the spindle for bar-fed machining.

These values are not interchangeable.

For example, the Mini-88-25 has a published maximum machining diameter of Ø80 mm but a bar capacity of 26 mm. This does not mean an Ø80 mm bar can pass through the spindle.

Manufacturers working with pre-cut blanks, chuck-held components, or bar-fed parts should consider how the workpiece will be loaded and held before selecting a machine.

3. Typical Applications for Small CNC Lathes

Compact CNC lathes can support a variety of manufacturing applications involving small precision turned components.

The following examples represent potential machining applications rather than a claim that every component can be produced on every Mini-88 model.

Mechanical and Automation Components

Automation equipment often incorporates small shafts, positioning pins, spacers, bushings, and threaded mechanical components.

These parts may require repeatable outside diameter turning, facing, grooving, and drilling.

For straightforward turning requirements, the Mini-88 may provide an appropriate starting point.

Electronic Equipment Components

Electronic equipment and industrial devices may use small metallic housings, sleeves, connectors, and mounting components.

Some of these parts contain additional off-center holes or cross-drilled features.

When such features are required, a machine with driven tooling and Y-axis movement may help reduce the need for separate drilling or milling operations.

Precision Hardware and Fastening Components

Small threaded fittings, collars, adapters, and custom fastening components often involve a combination of turning, drilling, and threading.

The required machine configuration depends on whether these operations are concentrated on one end, located off-center, or distributed across both ends of the component.

Components with Front- and Back-Side Features

Certain short components require machining on both ends before they are ready for assembly.

For these applications, a double spindle configuration may reduce the need to transfer workpieces to another machine or fixture.

The Mini-88-25 is particularly relevant when front- and back-side machining can be integrated into the same machining process.

4. Mini-88 vs. Mini-88Y vs. Mini-88-25: What's the Difference?

Although all three machines belong to Po Ly Gim's compact CNC lathe lineup, their configurations address different machining requirements.

Mini-88: Compact Turning for Small Precision Parts

The Mini-88 Series Compact CNC Lathe features a fixed-head configuration with gang-type tooling.

The machine can be equipped with a collet chuck or a three-jaw chuck, depending on workholding requirements. An optional servo turret is also available.

The Mini-88 is worth considering when the workpiece mainly requires conventional turning operations such as facing, outside diameter turning, boring, grooving, and threading.

Typical Selection Scenario: A manufacturer needs to produce small shafts, bushings, or stepped cylindrical components with a relatively straightforward turning process.

Explore Mini-88 Specifications

Mini-88Y: Compact CNC Turning with Y-Axis and Driven Tooling

The Mini-88Y Compact CNC Lathe adds Y-axis movement and a tooling configuration that supports both stationary and driven tools.

According to Po Ly Gim's published specifications, the machine accommodates:

• 6 outside diameter turning tools

• 4 inside diameter stationary tools

• 4 cross-driven tools

• 4 front off-center driven tools

This configuration is relevant when the part combines turning with cross drilling, off-center drilling, or other supported driven-tool operations.

Typical Selection Scenario: A small connector or precision component requires turning plus an off-center hole or side-drilled feature.

The Mini-88Y may allow these operations to be completed without transferring the part to a separate drilling or milling machine, depending on the machining program and tooling arrangement.

Explore Mini-88Y Specifications

Mini-88-25: Double Spindle Machining for Front- and Back-Side Operations

The Mini-88-25 Compact Double Spindle CNC Lathe is equipped with a main spindle, sub-spindle, and 8-station servo turret.

The main spindle supports front-side machining, while the sub-spindle enables back-side operations.

This configuration is especially relevant when a workpiece requires machining on both ends and manufacturers want to reduce secondary handling.

Typical Selection Scenario: A short precision component requires front-side turning, workpiece transfer, and back-side machining before completion.

For a more detailed explanation of this machining approach, read What Is a Double Spindle CNC Lathe and Why It Improves Production Efficiency?

Explore Mini-88-25 Specifications

5. Which Mini-88 Model Fits Your Part?

The following guide summarizes how different machining requirements may influence machine selection.

Your Part Requirement	Model to Consider	Main Reason
Small shafts, pins, bushings, and other primarily turned components	Mini-88	Compact gang-type turning configuration
Parts requiring off-center drilling or cross-driven machining	Mini-88Y	Y-axis and driven tooling
Parts requiring front- and back-side turning	Mini-88-25	Main spindle and sub-spindle
Parts requiring an optional servo turret for conventional turning	Mini-88	Optional servo turret configuration
Parts requiring reduced secondary handling between front- and back-side operations	Mini-88-25	Integrated double spindle machining

This comparison should be treated as an initial selection guide rather than a substitute for evaluating the actual part drawing.

When Should You Consider a Different CNC Lathe Configuration?

Not every small component is best produced on a Mini-88 machine.

Long, slender components may require a different approach to workpiece support, while more complex parts may require additional machining axes or tooling capabilities.

Po Ly Gim also offers Swiss Type CNC Lathes and other Fixed Head CNC Lathe configurations for different production requirements.

For a more detailed comparison, see Mini CNC Lathe vs. Swiss Type CNC Lathe: Which One Fits Your Business?

You can also explore the broader Po Ly Gim Fixed Head CNC Lathe lineup.

6. What Should You Prepare Before Requesting a Compact CNC Lathe Recommendation?

Choosing a compact CNC lathe becomes easier when the manufacturer can review the actual machining requirements.

Before requesting a recommendation, prepare the following information.

Part Drawing and Dimensions

Include the maximum outside diameter, overall length, hole locations, and important geometric features.

Workpiece Material

Identify the material and its grade, as material properties influence tooling and cutting conditions.

Required Machining Operations

Specify whether the part requires turning, drilling, boring, threading, cross drilling, off-center machining, or back-side machining.

Tolerance and Surface Finish Requirements

Provide critical dimensional tolerances and surface finish specifications so the machining process can be evaluated appropriately.

Production Volume

Indicate the expected batch quantity or production demand, along with any automation requirements.

Current Manufacturing Process

If the part is already in production, explain how many setups or machines are currently involved.

With this information, Po Ly Gim can better assess whether the Mini-88, Mini-88Y, Mini-88-25, or another machine configuration is appropriate.

7. Conclusion: Match the Compact CNC Lathe to the Part

A compact CNC lathe can be a practical manufacturing solution for small precision components, but selecting the right machine requires more than checking its dimensions or spindle speed.

The Po Ly Gim Mini-88 is suited to evaluating relatively straightforward small-part turning applications. The Mini-88Y adds Y-axis movement and driven tooling for parts requiring additional machining features. The Mini-88-25 combines double spindles with a servo turret for applications involving front- and back-side machining.

The best choice depends on your part geometry, machining sequence, workholding method, and production requirements.

Looking for a Mini CNC Lathe for Your Parts?

If you are evaluating a mini CNC lathe, small CNC lathe, or compact CNC lathe for your production line, Po Ly Gim Machinery can help review your machining requirements.

Share your part drawing, material, dimensions, machining operations, and expected production volume to determine which Mini-88 configuration may be suitable.

Contact Po Ly Gim Machinery for a Machine Recommendation or Inquiry

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• Mini CNC Lathe vs. Swiss Type CNC Lathe: Which One Fits Your Business?

• What Is a Double Spindle CNC Lathe and Why It Improves Production Efficiency?

• How Dual-Spindle Synchronization Reduces Cycle Time in Precision Machining

• Po Ly Gim Machine Selection Guide: How to Choose Between Fixed Head and Swiss Type CNC Lathes