Service & Technology | Large Part CNC Machining Services
Your Reliable Supplier of Customised Large Industrial Structural Components
Large CNC machining is a segment of CNC machining designed to manufacture products with large diameters or lengths. As a CNC machining process, it has many advantages such as high precision and accuracy.
Why choose our precision machining solutions
Innovative solutions for critical applications
At SPP Industry, our long history in a wide range of markets has given us unique engineering experience that we continually use to innovate. Each of our products follows our manufacturing principles: high performance, high durability, and superior reliability with machining exactly to the drawing.

Superior Reliability and Performance
We manufacture our precision components to ISO 9001 standards, rigorously inspecting every detail of the drawings to ensure that they are manufactured exactly according to the drawings, and offer innovative options for material selection.

Over 30 Years of Experience
SPP Industry has been specialising in precision machining solutions for 30 years, with a team of engineers making up more than 75% of the company's total workforce.

Advanced Hardware
We understand the importance of state-of-the-art machine tools and are continually producing high precision machine tools both domestically and internationally, with our main equipment originating from Germany, Switzerland, Austria and Japan.
Manufacturer and supplier of large CNC machining with high precision and complexity
As specialists in large-scale CNC machining, we offer vertical turning, deep hole drilling, large machining centres, gantry milling, boring machine work, vertical honing and other service technologies. We can machine complex 3D shapes in monolithic materials up to 4m x 2m x 2m and are also able to create larger workpieces using a variety of material welding methods and workpiece manipulation.
Knowledge
- CNC vertical lathes with power tooling for diameters from 500 to 2000 mm.
- CNC twin-spindle vertical lathes with power tools in the diameter range 400 to 1100 mm
- Various CNC gantry milling machines up to 2235x1500x2500mm XYZ
- 4-axis CNC horizontal and vertical machining centres and mill-turn centres with a machining range of up to 1800x1620x1300mm (XYZ) and 1000x1250mm in the B-axis.

Large customised components made entirely from drawings
Large and precise: to machine large workpieces with the highest precision, you need not only the right modern technology, but above all a great deal of experience and expertise. We have them!
Capabilities
- Provides large-scale machining services such as CNC machining centres, deep hole drilling, gun drilling, gantry milling, boring machines, large grinding machines, large crankshaft grinding machines, vertical honing, vertical lathes, sheet metal forming and more!
- Supported materials: forged steel, cast iron, steel, etc.
Working range
- Vertical CNC Turning: D : 5200 / W : 4200 / H : 2800 / Table load up to 25 tonnes.
- axis CNC machining centre: X: 2200 / Y: 1300 / Z: 1300 / B-axis 180° x 1° / table load max. 15 tons.
- Large grinding machines and crankshaft grinding machines: diameters up to 1500, lengths up to 6200.

Sealing holes in metal castings or hard plastic manifolds read: Typical Products and Applications for Large Machining
SPP Industry provides customised services for large structural components for the aerospace, automotive, energy and discharge, recycling technology, mining, oil and gas, steel manufacturing, cold and hot rolling, and cement sectors
Typical products:
Drive Shafts, Crankshafts, Long Shafts, Spindles, Gear Shafts, Splined Shafts, Bushings, Cams, Housings, Cases, Flanges, Cylinders, Bearings, Gears, Splined Bushings, Worms, Worm Wheels, Planetary Racks, Planetary Wheels, Rolls, Roller Rings, Cast Iron Pieces, Casting Parts, Stainless Steel Melt Castings Machining, Compressor Housings, Pump Housings, Transmission Cases, Shells, Planetary Racks, Sleeve Housings, Filter Frames, Housing Elements, Structural Pieces, Towed arms, swingarms yokes, steering knuckle mounts, vehicle components, thin-walled turned components, connecting rods, cylinder heads and cylinder blocks, forged components











We make many types of gears:
- Anti Backlash Gears
- Brass Gears
- Bronze Gears
- Custom Gears
- Delrin Gears
- Differential Gears
- Double Helical Gears
- Double Spur Gears
- Drive Gears
- Flywheels
- Gear Racks
- Gear Sets
- Gear Wheels
- Gears for Gear Trains
- Ground Gears
- Helical Gears
- Internal Gears
- Involute Gears
- Layshafts
- Metal Gears
- Nylon Gears
- Pinion Shafts
- Planetary Gears
- Plastic Gears
- Precision Gears
- Rack & Pinion Gears
- Rack & Pinion Steering
- Reduction Gears
- Ring Gears
- Shift Gears
- Sprockets
- Spur Gears
- Steel Gears
- Steering Gears
- Straight Cut Gears
- Timing Pulleys
- Worm Gear Sets
- Worm Gears
- Worm Shafts
- Worm Wheels
Talk to a SPP INDUSTRY Sales Engineer
Technical Knowledge and Industry Leading Insight
Large Part CNC Machining Services
Large CNC Machining Services from a team that speaks
your language
In our large machining facility, we perform precision machining of raw materials such as bars, squares, forgings, castings, etc., as well as measuring, cleaning and packaging services for the machined workpieces.
Gantry machining centre technology
- State-of-the-art CNC mill-turn machining centres
- Main and secondary shafts work in synchronisation
- Controlled 5-axis drilling and milling unit
- Wide range of tools and equipment
- Tolerances down to 0.01 mm

housing
Vertical turning technology
- Turning of up to 5,200 mm (panel 4,000 mm)
- Maximum component weight 25 tonnes
- Controlled 3-axis drilling and milling unit
- Semi-component machining
- Semi-component machining
- Tolerances up to 0.02 mm

Compressor Housing
Large grinding technology
- External, internal and non-circular grinding processes
- CNC universal grinding machine
- Large crankshaft grinding up to φ1200 mm
- Vertical Honing Technology
- Grinding of high-temperature alloys and titanium alloys

crankshaft
State-of-the-art equipment
State-of-the-art equipment allows concept, design and delivery under one roof
We are constantly investing in and upgrading the facilities at SPP Industry to ensure we have the resources we need to complete any job at any time – no matter how technical or complex.





Industry solutions
Precision Machining Solutions
With over 30 years of precision machining services, technical excellence, and consistent quality, more and more industry leaders are relying on SPP Industries for custom components.
Contact Us
Contact a Technical Sales Engineer
Discover precision component solutions tailored to your needs and applications, contact our team of technical sales engineers to start turning your ideas into reality