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Precision metal grinding

Surface and cylindrical grinding – a smooth, precise finish to the highest accuracy standards. We achieve tolerances down to ±0.01 mm.

Technical information

Surface grinding travel (X/Y/Z): 1100 × 320 × 280 mm
Cylindrical grinding capacity: up to Ø200 × 500 mm
Accuracy: ±0.01 mm
Grinding methods: surface and cylindrical grinding
Materials machined: all types of steel, including hardened, and non-ferrous metals
Production volumes: prototypes, one-off, small and medium batch production
Custom part manufacturing: shafts, bushings, plates, die components, bearing seats and more
Industries served: furniture, automotive, aerospace, defence, pharmaceutical, food and more
Logistics: manufacturing in Kaunas, delivery in Lithuania and abroad

Metal grinding examples

Grinding is almost always the final step. By then all the previous work is already built into the part – material, milling or turning, and often hardening. That is why mistakes here are the most expensive, and accuracy matters more than speed.

We also grind hardened parts that milling cutters or turning tools can no longer cut. This is common after heat treatment: the part distorts slightly and the final dimension needs to be restored. Because we harden and grind in the same workshop in Kaunas, such a part doesn’t travel between two companies or wait in line twice.

Cylindrical grinding: grinding a thin shaft between centres with coolant
Cylindrical grinding

How do we handle orders?

01

Enquiry

We carefully review the 2D drawings, 3D models and technical specifications you provide, and assess the part geometry and material properties.

02

Quotation

We agree on the manufacturing technology, tolerances, quantities and lead times, and provide an accurate quotation. Once the order is confirmed, the project goes straight into our production schedule. If needed, we also arrange additional services (heat treatment, anodising, galvanising, etc.).

03

Production

We manufacture using modern equipment. To ensure full compliance with the technical requirements, we carry out strict measurement and quality control both during and after machining.

04

Logistics

We pack products securely to protect surfaces from damage and deliver them to the agreed address on time.

How to submit an enquiry

The more precise your enquiry, the faster you get a price. A drawing and the quantity are usually enough, but if you have more information, send it straight away – it saves extra questions.

File formats

3D models: STEP (.stp, .step), IGES, Parasolid, SolidWorks
2D drawings: DWG, DXF, PDF
No CAD files? A good-quality photo or scan of the drawing also works
Only have the part? For grinding, the part itself and the required dimension are often enough

Useful to include

Quantity and allowance: how much material is left for grinding – ideally 0.1–0.3 mm
Material condition: whether the part is hardened and to what hardness
Critical tolerances: which dimensions and surfaces must meet the drawing
Surface roughness: Ra value, if specified on the drawing
Lead time: when the part is needed on site

We treat drawings and technical information as confidential – we do not share them with third parties or use them for other orders.

Materials used in manufacturing

We use only high-quality, certified materials. Taking into account your project requirements, operating conditions and loads, we help you choose the optimal material.

Steel: 1.0038 (S235JR), 1.1191 (C45E), 1.7225 (42CrMo4) and more
Hardened steels: tool and alloy steels after heat treatment
Stainless steel: 1.4301 (AISI 304), 1.4404 (AISI 316L) and more
Cast iron: EN-GJL-250, EN-GJS-400 and more
Pure metals: copper, aluminium, titanium and more
Alloys: brass, bronze, duralumin and more

Frequently asked questions

Metal grinding is a precision machining method in which a rotating abrasive wheel removes a very thin layer of material from the part’s surface. Each pass removes less material than milling or turning, so higher dimensional accuracy and a much smoother surface are achieved.

In most cases grinding is a finishing operation – after milling, turning or heat treatment, when the part needs its final dimension and surface quality.

We provide grinding services from our production base in Kaunas – for customers in Lithuania and across Europe.

Surface grinding: machining straight, flat surfaces – plates, die parts, bearing faces. The part is clamped on the table and the abrasive wheel machines its top surface.
Cylindrical grinding: machining cylindrical surfaces – shafts, bushings, axles. The part rotates around its axis while the wheel machines its outer or inner surface.

The choice depends on the part geometry and which surface must meet the tightest requirements.

If you make the part yourself and bring it in only for grinding, an allowance of 0.1–0.3 mm on each ground surface is usually enough. The exact amount depends on the part’s dimensions and whether it has been hardened.

Too small an allowance is risky: if the part distorted slightly after heat treatment, there may be nothing left to remove and the dimension can’t be saved. Too large an allowance simply lengthens the job and raises the price.

Not sure? Write to us before making the blank – we’ll tell you how much to leave in your case.

Advantages:
Highest accuracy: tolerances down to ±0.01 mm – more precise than most other machining methods.
Excellent surface quality: a smooth surface is achieved, in most cases requiring no additional polishing.
Machining hardened parts: grinding can machine hardened parts that milling or turning tools can no longer cut.
Correcting distortion: restores the dimensions of parts that distorted slightly during heat treatment.
Limitations:
Low material removal: grinding removes only thin layers, so the part must be made close to its final dimensions.
Geometry limitations: suitable for flat and cylindrical surfaces – complex 3D shapes can be ground only to a limited extent.
Machining time: due to the low removal rate, grinding is slower than milling or turning.
Heat effect: with incorrect settings the surface can overheat, so the process is carried out with controlled cooling.

Have a project?

Share your project requirements by email and we will prepare a tailored quotation. We are also happy to advise on early-stage projects – helping you assess needs and options and find the optimal solution.