Service & Technology | Precision Grinding,Honing,Polishing
Reliable grinding with accuracy down to 0.1um
Grinding and Honing is a finishing process. After a workpiece has been CNC turned, milled, drilled, bored, etc., it is often necessary to grind it if higher precision and finish are required.
Grinding is the process of removing excess material by excising the workpiece with grinding wheels and other abrasive tools, and generally the harder the material, the easier it is to grind, and SPP Industry can grind hard materials such as carbide, ceramics, and industrial gemstones with diamond grinding wheels.
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.
Precision Grinding & Honing Manufacturers & Suppliers
As a precision grinding and honing specialist, we offer CNC grinding service technology for external grinding, internal grinding, surface grinding, centreless grinding, follower grinding, crankshaft grinding, micro grinding, honing, optical grinding and more.
Knowledge
Our tool warehouse has a large stock of grinding wheels and other abrasives in stock, which can be replaced at any time to correspond to the corresponding material grinding process. We also have grinding wheels of various grits in stock to meet specific finish and roughness requirements for workpieces.







Precision Grinding Capacity and Range
When you need grinding services for cylindrical or conical workpieces, non-circular or block workpieces, large or micro-small workpieces, SPP Industry is your first choice. Our manufacturing facility has state-of-the-art grinding equipment and experienced technical engineering staff to meet every requirement of your drawing design!
- Internal cylindrical grinding
- vertical grinding
- surface grinding
- thread grinding
- grinding machine
- grinding hardened steel
- polishing of sapphire and ruby
- cylindrical grinding
- subsequent grinding treatment
- honing
- curve grinding
- crankshaft machining
- grinding of technical ceramics
- quartz glass grinding
- centerless grinding
- coordinate grinding
- spline shaft machining
- gear processing
- cam machining
- carbide grinding
- mirror polishing
Knowledge:
Internal Cylindrical Grinding, External Cylindrical Grinding, Centerless Grinding, Vertical Grinding, Follower Grinding, Coordinate Grinding, Surface Grinding, Honing, Spline Shaft Grinding, Thread Grinding, Curve Grinding, Gear Grinding, Crankshaft Grinding, Cam Grinding, Hardened Steel Grinding, Technical Ceramics Grinding, Tungsten Carbide Grinding, Sapphire & Ruby Grinding, Quartz glass grinding, mirror grinding

Typical products and application areas of grinding processing technology
The application of grinding processing is generally in the high-precision, high criticality of the workpiece, this kind of customised components generally need to be high finish requirements, high wear-resistant requirements, high vulnerability requirements, high degree of fit and other requirements. Most applications are in the fields of aviation and aerospace, hydraulics and pump bodies, semiconductors, mould and die manufacturing, medical technology, steel manufacturing, fastener manufacturing, powder metallurgy forming, automotive, energy technology, agricultural machinery and fluid control.
Typical products:
Shaft components, crankshafts, eccentric shafts, camshafts, cams, eccentric wheels, gears, spline shafts, worm gears and worm wheels, rack and pinion, hydraulic spools, hydraulic valve bodies, hydraulic valve liners, valve stems, cylinder blocks, cylinder liners, gear shafts, ceramic components, tungsten carbide components, tungsten carbide rolls, punches and matrices, cemented carbide moulds, cemented carbide tools, carbide tools, tooling, mould fittings, cores and inserts, chambers and sliders. Flanges, Thin-walled components, Sleeves, Connecting rods, Cylinder heads, Cylinder blocks











We make many types of gears:
- Shafts
- fists
- worms and worm wheels
- hydraulic valve bushings
- toothed shafts
- punches and dies
- mold components
- thin-walled parts
- Cylinder blocks
- crankshafts
- eccentric wheels
- racks and pinions
- valve stems
- ceramic parts
- carbide matrices
- rods and inserts
- bushings
- eccentric shafts
- gears
- hydraulic spool valves
- cylinder blocks
- tungsten carbide parts
- carbide tools
- cavities and guides
- connecting rods
- camshafts
- splined shafts
- hydraulic valve bodies
- cylinder liners
- tungsten carbide rollers
- Hardened steel tools
- flanges
- cylinder heads
Talk to a SPP INDUSTRY Sales Engineer
Technical Knowledge and Industry Leading Insight
Grinding and honing technology
Grinding and honing services from a team that speaks your language
High precision and fineness: the grinding process results in a precise minimization of surface roughness. Whether it is grinding round, flat or non-round parts, we have the experience and the machines!
Circular grinding technolog
- Internal and External Circular Grinding
- Precision Honing
- Surface, plunge and taper grinding
- Workpiece sizes up to Ø 1,800 mm
- Surface quality up to Rz 0.04
- Tolerance fulfilment up to 1 µm

Crankshaft grinding technology
- Unround grinding
- Grinding technology for uneven surfaces or bores
- urface quality up to Rz 0.2
- Tolerance fulfilment up to 3 µm
- Semi-component machining
- Tolerances up to 0.02 mm

Crankshafts
Tolerance fulfilment up to 3 µm
- Workpiece sizes up to 2,000 x 1,000 x 600 mm
- Surface quality up to Rz 0.02
- Full-cut grinding, vertical grinding
- Tolerances up to 1 µm

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