Product Overview
A Vertical Machining Center Frame is the primary structural platform of a VMC, providing the rigid mounting base for the worktable, column, guideways, spindle system, ball screws, and other core machine components.
The frame configuration directly affects available X/Y/Z travel, machining envelope, worktable capacity, guideway arrangement, and overall machine rigidity. Consequently, VMC frames are selected and manufactured according to specific machine design requirements rather than supplied as generic castings.
Available configurations include box-way, XY linear-way, XYZ linear-way, and 5-axis machining center frame designs. Box-way structures are utilized where high rigidity and heavy-duty cutting are paramount, while linear-way configurations deliver optimal positioning performance and rapid travel speeds.
Frames can be supplied as standard catalog models or custom-developed around customer engineering drawings, machine dimensions, and component interfaces.
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Box Way Vertical Machining Center FrameThanks to its excellent mechanical structure design and high-quality component configuration, the box way vertical machining center frame offers unique advantages in heavy-duty cutting,
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Box Way VMC FrameBox way VMC frames featuring a proven traditional design, this machine delivers high precision and stable performance for heavy-duty cutting applications.
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XY Linear Way Vertical Machining Center FrameIt is widely used in mold manufacturing and parts processing where strict requirements apply with regard to machining accuracy and rigidity. The mechanical parts' advantages stem from careful
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XY Linear Way VMC FrameThe XY linear way VMC frame, featuring a FEM-optimized XY linear guide way structure and Z box guide way, this machine achieves high precision and consistent long-term performance for mass parts
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XYZ Linear Way Vertical Machining Center FrameThe XYZ linear way vertical machining center frame, featuring an FEM‑optimized XYZ linear guide way structure, this machine achieves high precision and consistent long-term performance for mass parts
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XYZ Linear Way VMC FrameThe XYZ linear way VMC frame, featuring a proven traditional design, this machine delivers high precision and stable performance for heavy-duty cutting applications.
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5 Axis Vertical Machining Center FrameKey functional components, including linear guide ways, ball screws, spindle units, are sourced from renowned international brands. This guarantees the machine’s high reliability, precision
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5 Axis Bridge Machining Center FrameThe main structure is constructed from high-quality GG30 cast iron, manufactured using resin sand molding and wooden pattern processes. This ensures the frame possesses excellent vibration damping,
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Rapid And Light Duty VMCHT300 castings are fabricated via resin sand molding, followed by electric furnace tempering, rough machining, and vibration treatment. This comprehensive treatment effectively eliminates internal
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Drilling Tapping Center FrameThe entire series adopts HT300 high-grade resin sand castings, which undergo annealing and vibration aging treatment to effectively eliminate internal stress and ensure long-term dimensional
Machine Structure & Configuration
Box-Way VMC Frame
Utilizes box guideways across the X, Y, and Z axes. Surfaces are precision-machined, hardened, and finished for stable sliding interfaces. Engineered for heavy-duty cutting and demanding structural damping.
XY Linear-Way VMC Frame
Combines linear guides on the X and Y axes with a Z-axis box guideway. Precision-ground guide mounting surfaces pair with a quenched, ground, Turcite-B coated, and hand-scraped Z-axis box way.
XYZ Linear-Way VMC Frame
Features linear guideways across all three axes with fine-ground mounting surfaces. Ideal for platforms requiring high axis travel speeds and repeatable motion for parts production.
5-Axis VMC Frame
Engineered with specialized structural considerations for spindle, rotary-axis, and workpiece clearance, tailored entirely to the target machining envelope.
Key Features
Multiple Structural Configurations: Box-Way, XY Linear-Way, XYZ Linear-Way, and 5-axis frame options.
High-Grade Cast Iron Construction: Premium GG30 and HT300 cast iron utilized across applicable frame series.
Resin Sand Molding: Advanced casting process ensuring high dimensional accuracy and superior surface finish.
FEM-Based Optimization: Finite Element Method applied to evaluate and refine structural stiffness and dynamic response.
Precision-Finished Guideways: Guide mounting surfaces precision-ground or finished to strict engineering tolerances.
Advanced Box-Way Finishing: Includes induction quenching, precision grinding, Turcite-B coating, and precision scraping.
Configurable Motion Interfaces: Tailored mounting interfaces for ball screws, linear guides, and spindle systems.
OEM-Oriented Engineering: Dimensions and core interfaces fully customized to match proprietary machine architectures.
Main structural castings utilize GG30 cast iron on several standard series, with HT300 cast iron applied to heavy-duty machine series depending on performance requirements.
Resin sand molding and durable wooden patterns are employed for all castings. The manufacturing sequence integrates controlled metallurgy, thermal stress relief, and precision machining:
Box-Way Series: X, Y, and Z guideway surfaces undergo induction quenching, precision grinding, Turcite-B anti-friction coating, and expert scraping.
Linear-Way Series: Guide mounting surfaces are ultra-finely ground to seamlessly match roller-type or ball-type linear guides.
Material grades and finishing routes are selected collaboratively based on machine size, cutting loads, guideway layouts, and target geometric tolerances.

Technical Specifications & Reference Parameters
Because Vertical Machining Center Frames are customized to specific machine architectures, parameters vary by model.
Typical Configuration Parameters:
|
Parameter |
Typical Range / Configuration |
|
Frame Type |
Box-Way / XY Linear-Way / XYZ Linear-Way / 5-Axis |
|
Casting Material |
GG30 cast iron; HT300 on applicable heavy-duty series |
|
Casting Process |
Resin sand molding with wooden patterns |
|
Guideway Options |
Box-way / Ball linear guide / Roller linear guide |
|
X-Axis Travel |
Approximately 800 to 2,000 mm |
|
Y-Axis Travel |
Approximately 500 to 900 mm |
|
Z-Axis Travel |
Approximately 550 to 800 mm |
|
Worktable Size |
Approximately 500 x 1,000 mm to 2,000 x 900 mm |
|
Maximum Table Load |
Approximately 450 to 1,600 kg |
|
Spindle Interface |
BT40 / BT50 (customizable per specification) |
|
Ball Screw Interface |
Model-dependent (e.g., 40/10, 40/12, 50/10, 55/12 mm) |
|
Drive Arrangement |
Direct-drive / Servo-compatible |
|
Machine Frame Weight |
Approximately 2,500 to 11,000 kg (model-dependent) |

Mold & Die Manufacturing: Rigid structural configurations designed for high-precision mold machining, offering superior damping and thermal stability.
General Parts Machining: Stable platforms for manufacturing industrial housings, plates, brackets, and complex mechanical components.
Mass Production: Linear-way configurations engineered for rapid traverse speeds and high positional repeatability.
Heavy-Duty Cutting: Box-way structures providing maximum rigidity for deep milling and heavy workpiece loads.
Customized CNC Machine Platforms: Tailored OEM frames built for machine builders launching proprietary CNC machine models.
Manufacturing & Quality Control
The manufacturing process ensures strict structural integrity from raw casting to final inspection:
Casting & Metallurgy: Produced via resin sand molding using premium GG30 and HT300 cast irons with strict chemical composition control.
Thermal Stress Relief: Castings undergo controlled aging and thermal/vibration-relieving treatments to minimize residual internal stress and secure long-term dimensional stability.
Precision Machining: Major reference and mounting surfaces are processed on heavy-duty floor-type boring and milling machines.
Guideway & Interface Finishing: Box ways undergo quenching, grinding, Turcite-B coating, and manual scraping; linear guide surfaces are precision-ground.
Quality Standards & Inspection:
Strict adherence to standardized quality management systems.
Critical dimensions, guideway parallelism, squareness, and spindle-to-table geometric relationships are verified using CMM (Coordinate Measuring Machines) and laser interferometers.
Comprehensive inspection reports and material test certificates (MTC) are supplied upon request.
OEM & Customization
A Vertical Machining Center Frame is engineered directly around the machine builder design. OEM customization covers:
X/Y/Z travel requirements & worktable dimensions
Table load capacities & T-slot layouts
Guideway configuration (Box-way vs. Roller/Ball linear guides)
Guideway mounting dimensions & ball screw interfaces
Spindle center position & spindle-to-table clearance
Column, base, and overall frame dimensions
Z-axis counterbalance & lubrication/coolant routing interfaces
Customer drawing integration & specific assembly tolerances
Inquiry Guidance: For an accurate engineering review, please provide machine layouts or 2D/3D drawings, target travel, table size, spindle specifications, and estimated annual volume.

FAQ
As one of the most professional vertical machining center frame manufacturers and suppliers in China, we also support customized service. Please rest assured to buy bulk vertical machining center frame made in China here from our factory. Contact us for more details.
