Metal machining, Engineering production
Our company specialises in the machining of metals – CNC turning, CNC milling and conventional machining. We produce precision parts to customer drawings, from a single piece to small series.
Our main specialities are flanges, labyrinths, plain bushings and strips, non-standard pulleys, crane travel wheels and machine tool tables. We manufacture for general engineering, the automotive industry and the chemical and energy industries.
Machining in numbers
- Accuracy: IT8–IT7, surface roughness Ra 1.6–0.8 µm straight from machining
- Materials: cast iron (grey and ductile), bronze, brass, copper, steels, stainless steel and other metals on request
- CNC turning: up to D 600 mm diameter, 1,250 mm length and workpieces of up to 3,000 kg (MAX Müller MD 20 turning centre)
- CNC milling: parts up to 1,300 × 600 × 500 mm on DMG and Doosan vertical centres
- Lead time: typically 2–3 weeks depending on material availability, custom plain bushings within 10 days
- Quantity: from 1 piece
We design our own parts and fixtures in CAD-CAM software and program machining in Solidworks 2019. Parts are supplied with a measurement report and material certificate, and on request with 3D CMM measurement.
Cast iron machining
Cast iron machining is our traditional discipline – as a supplier of continuously cast Unibar cast iron we machine parts in grey and ductile iron straight from our own stock of semi-finished products. Cast iron machines well, damps vibration and has good sliding properties, so we often use it for plain bushings, flanges and machine tool tables.
Bronze, brass and copper machining
Bronze machining and the machining of other non-ferrous metals complements our range of bronze, brass and copper. From bronze bars and tubes we mainly produce plain bushings, flanges, strips and labyrinths. Custom plain bushings are delivered within 10 days.
How an order works
- Send us a drawing of the part by e-mail to prodej@unibar.cz. No drawing? Send us the old part and we will create the drawing from it.
- Based on the drawing we prepare a price and delivery quotation and recommend a suitable material.
- We manufacture the part and supply it with a measurement report and material certificate. If you do not need a finished part, we can also supply a semi-finished blank.
Precision machining
We invest in modern technologies and equipment for different levels of accuracy. We use professional CAM software to prepare programs for CNC precision machining and typically achieve IT8–IT7 accuracy and Ra 1.6–0.8 µm without additional grinding.
All our engineering production services are provided according to ISO 9001:2015. Qualified staff handle each order individually – from the initial consultation and choice of material through price calculation to production and delivery on the agreed date.
Frequently asked questions
What machining accuracy do you guarantee?
For CNC turning and milling we achieve IT8–IT7 accuracy and a surface roughness of Ra 1.6–0.8 µm straight from machining.
How long does production take?
Typically 2–3 weeks depending on material availability. Custom plain bushings are delivered within 10 days. In case of a machine breakdown we deliver material on an express basis.
Can you make a part without a drawing?
Yes. Send us the old or damaged part, we will create the drawing from it and manufacture the part.
Do you machine single pieces?
Yes. We produce from a single piece.
