4-Axis CNC Machining Services
Delivering high-accuracy multi-face machining for metals and engineering plastics. From rapid prototypes to scalable production, we ensure efficiency, quality, and consistency in every part.
Xtproto 4-Axis CNC Machining Services
Xtproto delivers precision 4-axis CNC machining for complex multi-face components, combining advanced rotary-axis technology, experienced machinists, and strict quality control. From rapid prototyping to full-scale production, we ensure high accuracy, efficiency, and consistency for every project.
Our core capabilities include:
- Advanced 4-Axis Machining: Multi-face machining in a single setup reduces repositioning errors and improves production efficiency.
- Precision & Material Flexibility: Supports metals and engineering plastics with tight tolerances down to ±0.01 mm, ensuring consistent, high-quality parts.
- Scalable Production: Flexible manufacturing from prototypes to high-volume runs with fast lead times to meet diverse project needs.
State-Of-The-Art Precision CNC Manufacturing Facility
160,000+ sq ft
Modern Production Facility
600+ CNC Machines
3-Axis, 4-Axis & 5-Axis Machining Centers CNC TurningSwiss Lathes · EDM · Grinding
25+ Automated Production Lines
Integrated Machining & Post-Processing
24/7 Customer & Engineering
Support Responsive Global Service
160,000+ sq ft
Modern Production Facility
600+ CNC Machines
3-Axis, 4-Axis & 5-Axis Machining Centers CNC TurningSwiss Lathes · EDM · Grinding
25+ Automated Production Lines
Integrated Machining & Post-Processing
24/7 Customer & Engineering
Support Responsive Global Service
Advanced 4-Axis Machining
Xtproto’s state-of-the-art vertical and horizontal 4-axis CNC machines enable highly efficient multi-face machining in a single setup, reducing repositioning errors and cutting production time. Our facility can handle parts up to 500 mm in size with tight tolerances down to ±0.01 mm, ensuring precision and consistency across every batch.
With 4-axis capability, we can produce complex geometries and intricate features that are difficult or time-consuming on traditional 3-axis machines. This makes it ideal for functional prototypes, precision components, and multi-sided parts requiring high repeatability and excellent surface finishes.
Equipped with multiple advanced 4-axis machines, our workshop supports both rapid prototyping and scalable production. By combining cutting-edge equipment, experienced machinists, and streamlined workflows, we deliver fast turnaround without compromising quality, even for the most demanding projects.
Precision & Material Flexibility
At Xtproto, we achieve exceptional precision and repeatability across a wide range of materials. Our 4-axis CNC machining capabilities support metals such as aluminum, stainless steel, titanium, brass, and engineering plastics like POM, ABS, PC, PEEK, and Nylon.
We consistently hold tight tolerances down to ±0.01 mm, ensuring every part meets design specifications with high surface quality. This combination of material versatility and precision makes our machining services ideal for both functional prototypes and high-accuracy production components.
By integrating advanced machining technology with skilled engineers and machinists, we can handle challenging geometries, thin walls, and intricate features while maintaining dimensional stability and surface finish integrity.
Materials We Machine
Metals
- Aluminum
- Stainless steel
- Brass
- Copper
- Titanium
- Mild steel
- Alloy steel
- Tool steel
- Spring steel
- Bronze
- Steel
- Magnesium
Plastics
- ABS
- Polycarbonate (PC)
- Nylon
- Polypropylene (PP)
- POM
- PTFE (Teflon)
- PMMA (Acrylic)
- Polyethylene (PE)
- PEEK
- Bakelite
- Rubber
- Carbon Fiber
- HDPE
- HIPS
- LDPE
- PBT
- PPA
- PAI
- PET
- PPS
- PS
- PVC
- UPE
- Bakelite
- FR-4
Competitive Pricing & Certified Quality
At Xtproto, we believe precision CNC machining should deliver both top-notch quality and real value. That’s why our competitive pricing makes high-performance 4-axis machining accessible for projects of all sizes—from rapid prototyping to full-scale production—without ever sacrificing accuracy or reliability.
We never compromise on quality. With ISO 9001:2015 and AS 9100 certifications, our processes meet the highest standards of Quality Assurance. Combine that with our advanced equipment and experienced engineers, and you get consistent, high-precision results every time.
What does this mean for you? You get superior machining results while keeping your budget in check. Transparent pricing, tailored solutions, and certified quality make Xtproto a partner you can trust—bringing precision CNC machining that’s both reliable and cost-effective.
Scalable Production
Xtproto’s 4-axis CNC machining services are designed to scale with your project needs. Whether you require rapid prototyping, low-volume runs, or high-volume production, our facility can adapt to deliver reliable results without compromising precision or quality.
Our flexible manufacturing system, combined with advanced machinery and experienced machinists, ensures that lead times are minimized while maintaining consistent output across batches. This allows us to efficiently support both urgent projects and long-term production plans.
By integrating streamlined workflows and production planning, we help clients accelerate time-to-market while keeping costs competitive, making Xtproto an ideal partner for projects of any size.
Low Volume CNC Machining
High Volume CNC Machining
Rapid Prototyping
Parts We Machined
Ready to Bring Your Design to Life?
Bring your complex designs to life with our 4-axis CNC machining. From rapid prototypes to full-scale production, we deliver precise, high-quality parts with unmatched accuracy—get your project started today.
What Is 4-Axis CNC Machining?
4-axis CNC machining is a milling process where the cutting tool moves along the standard X, Y, and Z axes, while a fourth rotational axis allows the workpiece to turn during machining. This extra axis lets you machine multiple sides of a part in a single setup, saving time and improving precision.
By adding rotational movement, 4-axis CNC machining can handle more complex shapes and intricate features than traditional 3-axis machining. It delivers better surface consistency, reduces setup time, and is ideal for parts with features on multiple faces or curved geometries that require precise alignment. Our CNC machining services make it easy to take advantage of 4-axis machining for high-precision, multi-sided components.
Difference Between 3-, 4-, and 5-Axis CNC Machining
| Axis | Capabilities | Typical Applications / Advantages |
|---|---|---|
| 3-Axis | Moves along X, Y, Z linear axes | Ideal for simple parts with features on a single face; cost-effective for standard milling and drilling. |
| 4-Axis | Adds a rotational axis to 3-axis | Suitable for parts with features on multiple sides; reduces setups, improves alignment, handles moderate complexity efficiently. |
| 5-Axis | Adds two rotational axes to 3-axis | Enables machining of highly complex geometries, tight tolerances, and angled features; reduces setups and maximizes precision for aerospace, medical, and high-end components. |
When to Choose Each Axis
- 3-Axis: Best for simple parts, low complexity features, and projects where cost is a primary concern.
- 4-Axis: Ideal for parts with multiple faces or angled surfaces, offering a balance of precision, efficiency, and cost.
- 5-Axis: Reserved for extremely complex or precision-critical parts that require angled features or ultra-tight tolerances.
Unsure which axis is best for your part? Contact Xtproto engineers for guidance.
Benefits of 4-Axis Machining
When To Choose 4-Axis CNC Machining?
Multiple-Sided Features: When a part has several faces or angled surfaces, the fourth axis lets you machine them in fewer setups, keeping everything aligned.
Moderate Complexity: For designs that are more intricate than what a 3-axis machine can handle, but don’t need full 5-axis motion, 4-axis hits the sweet spot.
Circumferential or Indexed Details: Cylindrical parts with radial holes, slots, or pockets can be machined more accurately with controlled rotation.
Reducing Setups: If your current process uses multiple 3-axis setups, 4-axis can simplify production and improve consistency.
Balanced Cost and Precision: It’s more capable than 3-axis while avoiding the extra cost of 5-axis, delivering reliable accuracy for most parts.
Why Choose Xtproto For 4-Axis CNC Machining?
At Xtproto, we combine engineering expertise with advanced 4-axis capabilities to deliver precise, reliable, and production-ready components.
Engineering-Driven Approach: Every project is reviewed by experienced engineers to optimize geometry, tolerances, and manufacturability before production begins.
True Multi-Sided Precision: Advanced 4-axis systems reduce setups, improve alignment accuracy, and ensure consistent results across complex part geometries.
Smart Cost-to-Performance Balance: We recommend the most efficient machining strategy to meet your tolerance requirements without unnecessary expense.
Strict Quality Control: Comprehensive inspection processes ensure repeatable accuracy from prototype through full production.
Transparent Communication: Clear quotations, realistic lead times, and proactive updates keep your project on schedule.
Surface Finishes For 4-Axis CNC Machining
At Xtproto, we offer specialized surface finishing for 4-axis CNC machined components. From smooth, polished finishes to textured or functional coatings, our processes improve part longevity, enhance visual appeal, and ensure consistent performance across all machined faces. Every finish is applied with precision to complement the complexity of multi-sided machining, helping your parts meet both aesthetic and functional requirements.
Machining Tolerance Standards
Xtproto verifies all parts using advanced inspection tools to ensure they meet required specifications. If your design does not specify tolerances, our standard guidelines are applied. Our engineers can also review your project to recommend optimal tolerances based on part geometry, material, and functional requirements.
| Tolerance Type & Range | Application / Description |
| Dimensional: ±0.005 mm (±0.0002″) to ±0.1 mm (±0.0039″) | Standard dimensional tolerances suitable for most machining tasks and general parts. |
| Geometric: ±0.01 mm (±0.0004″) to ±0.05 mm (±0.002″) | Controls form, orientation, position, and runout for complex components and critical features. |
| Straightness: 0.005 mm (0.0002″) to 0.02 mm (0.0008″) | Ideal for parts requiring precise straight edges or axes. |
| Flatness: 0.005 mm (0.0002″) to 0.03 mm (0.0012″) | Limits deviation from a true plane, suitable for mating or flat surfaces. |
| Cylindricity: 0.01 mm (0.0004″) to 0.05 mm (0.002″) | Ensures roundness and straightness in precision cylindrical components. |
| Concentricity: 0.01 mm (0.0004″) to 0.03 mm (0.0012″) | Ensures multiple features share a common centerline, ideal for shafts and rotating parts. |
| Perpendicularity: 0.01 mm (0.0004″) to 0.05 mm (0.002″) | Maintains accurate 90° relationships between surfaces or axes. |
Request Your Free CNC Machining Quote Today
After receiving your drawings, our engineers will analyze your custom CNC machining parts right away. We actively work with you to clarify all details before providing a quote that is both economical and accurate.