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4 Plus 1 CNC Machine
Campro USA introduces the 4 Plus 1 CNC Machine lineup, engineered for precision, versatility, and reliability without the full cost or complexity of simultaneous 5-axis systems. Built on a foundation of Meehanite cast iron with box way construction, they ensure exceptional rigidity and vibration control. A powerful 12,000 RPM CAT-40 Big-Plus spindle handles tough materials with ease. On our CPV1050B platform, you can choose from 320 mm, 400 mm, or compact trunnion tables to reduce operator intervention and part repositioning. Equipped with Fanuc Oi-F Plus controls, high-speed rapids, and backed by U.S.-based service, Campro’s 4+1 series is
trusted by engineers and machinists.
Explore Our 4 Plus 1 CNC Machine Categories
CPV-1050B 4 + 1 (w/ 320 mm Trunnion)
This model features a 12.6″ trunnion table ideal for precision multi-face machining. With 12,000 RPM spindle speed, box-way rigidity, and Fanuc control, it's perfect for aerospace, mold, and production parts requiring tight tolerances and reduced setups.
CPV-1050B 4 + 1 (w/ 400 mm Trunnion)
Built for larger workpieces, this version includes a 15.75″ trunnion table supporting up to 26.7″ diameter parts. It delivers the same power, precision, and high-speed capability as the 320 mm model, optimized for complex, high-mix machining with greater part size flexibility.
U255C 4 + 1 VMC
Ideal for smaller components, the U255C combines a compact footprint with a full 360° trunnion powered by a worm-gear drive. Precision indexing, a 12,000 RPM spindle, and high-speed rapids make it an excellent choice for tight-tolerance parts in limited-space applications.
Benefits of 4 Plus 1 CNC Machine
True Multi-Face Machining Without Full 5-Axis Complexity
The 4+1 layout provides access to five sides of a part in a single setup, significantly reducing fixture changes, operator intervention, and alignment errors, while simplifying toolpath programming compared to full simultaneous 5-axis systems.
Exceptional Accuracy from Fixed Workholding
Because the workpiece remains securely fixtured while the rotary axis indexes, you eliminate cumulative setup errors, making it ideal for tight-tolerance applications such as aerospace brackets, mold cores, or prismatic medical parts.
Engineered for Heavy-Duty Machining
With hardened box ways, Meehanite cast construction, and high-torque spindles, these machines are designed to handle aggressive cuts in tough materials without deflection, resulting in improved surface finishes and extended tool life.
Greater Part Variety, Less Setup Time
Whether you’re switching from aluminum housings to tool steel components, the 4+1 configuration allows for high-mix, low-volume production with minimal downtime, especially critical for job shops and short-run manufacturing.
Smaller Footprint, Big Capability
Compared to full 5-axis platforms, these machines deliver most of the benefits in a more compact form, saving valuable shop floor space while still accommodating a broad range of part sizes and weights.
Applications Across Diverse Industries
Aerospace Components
Campro’s 4+1 CNC machines are ideal for aerospace parts that demand tight tolerances and multiple machining angles. Brackets, housings, and structural components made from titanium or stainless steel benefit from reduced setup times and improved accuracy, meeting the industry's stringent quality standards.
Automotive & Motorsports
From engine parts to suspension components, these machines support complex geometries and short-run production with high repeatability. The 4+1 format ensures faster cycle times and consistent performance, critical in competitive, fast-paced manufacturing environments.
Mold & Die Manufacturing
Toolmakers rely on 4+1 machines for machining cores, cavities, and inserts with intricate details. The rigid box-way design and high-speed spindle enable precise milling of hardened tool steels, resulting in superior surface finishes and extended tool life.
Medical Devices & Implants
Perfect for low-volume, high-precision production, these machines handle orthopedic implants, surgical tools, and fixtures with ease. Multi-face access in a single setup ensures dimensional accuracy in demanding materials, such as titanium and cobalt-chrome.
Job Shops & Contract Manufacturers
High-mix shops benefit from the 4+1 machine’s flexibility, which allows for quick changeovers and minimal fixturing across diverse part types. This adaptability enables manufacturers to serve various sectors without compromising precision or productivity.
Unsure which model suits your needs? Our engineers will guide you through the right fit. Call (484) 892-6333 or request a demo here!
FAQS
What workpiece sizes and weights can the CPV‑1050B and U255C trunnion tables handle?
The CPV‑1050B supports round workpieces up to 15.75″ diameter × 12″ height, weighing 220 lb. The U255C handles components up to 10.43″ × 8.46″, with load capacities of 220 lb horizontally or 165 lb vertically, ensuring stable multi-face machining.
What materials are best suited for machining on these 4 + 1 CNC centers?
Built with Meehanite cast frames and high-torque spindles, these machines excel in cutting aluminum, steel, stainless alloys, and titanium, striking a balance between rigidity and speed for demanding jobs in aerospace, automotive, die/mold, and high-mix production environments.
Can these 4 + 1 machines support high-speed machining applications?
Yes, these 4 + 1 CNC machines are well-suited for high-speed machining. Equipped with 12,000 RPM spindles, high-rigidity Meehanite castings, precision box ways, and rapid traverse rates up to 1,181 IPM, they deliver the speed, stability, and vibration damping needed for fast, accurate material removal.
What spindle types and speeds are available for the 4 + 1 models?
The 4 + 1 models, such as the CPV‑1050B, feature a CAT-40 Big-Plus spindle with a 12,000 RPM maximum speed, powered by a 25 HP belt-drive motor delivering up to 132 ft-lb of torque.
What guideway systems are used to ensure rigidity?
The CPV‑1050B 4 + 1 CNC models use hardened box way slide systems on all axes, crafted from heat-treated Meehanite cast iron. This traditional box-way design ensures maximum rigidity, vibration damping, and load-bearing capacity.
What are the control system options, and can they be customized?
The 4 + 1 machines come standard with the Fanuc Oi‑F Plus control, offering reliable multi-axis support and Manual Guide i. Customizations include advanced control upgrades, probing, automation interfaces, and tailored I/O to suit specific machining or integration needs.
How does the 4 + 1 layout compare to full simultaneous 5‑axis machining?
The 4 + 1 layout enables multi-face machining with one rotary axis positioned per cycle, offering simpler programming and lower cost.
What is the recommended maintenance schedule for lubrication and coolant systems?
Follow a daily check for coolant levels and leaks, and weekly inspections for lubrication oil levels and delivery lines. Clean filters monthly and replace coolant and oil as needed, typically every 3–6 months, to ensure optimal machine health and accuracy.
What support and warranty coverage do Campro 4 + 1 machines include?
Campro 4 + 1 machines include a 1-year mechanical warranty and a 2-year parts and labor warranty. U.S.-based support includes installation, training, parts, and lifetime technical assistance from our facility in Bethlehem, PA.
