01 / 06
Turning
Cylindrical parts with tolerances down to ±0.005 mm.
Parts manufacturing from drawings
CNC machining, stamping and injection moulding. Tolerances down to ±0.003 mm, inspection on every operation, volumes from a single part to serial batches.
Send a drawing01 / Scope
What the service includes
02 / 06
Milling
5-axis operations on complex geometries.
03 / 06
Stamping
Serial stamping with a full die set.
04 / 06
Plastic moulding
Injection moulding of engineering plastics.
05 / 06
Non-ferrous casting
Non-ferrous alloys and brass on request.
06 / 06
Finishing operations
Polishing, electroplating, laser marking (via partners).
02 / Accuracy and surface finish
Tolerances and Ra by operation
Real values for typical parts. For tight tolerances and Ra below 0.4 µm please check with us — a dedicated process route is required.
Operation
IT grade
Ra · precision
- Rough turningFor subsequent machiningIT12–IT116.3For subsequent machining
- Finish turningMost fit diametersIT8–IT71.6Most fit diameters
- Fine turningDiamond tool, no interrupted cutIT60.8Diamond tool, no interrupted cut
- Rough millingStock removalIT126.3–3.2Stock removal
- Finish millingStandard surfacesIT9–IT81.6Standard surfaces
- High-speed milling (HSM)5-axis, for complex cavitiesIT70.85-axis, for complex cavities
- Surface grindingAfter hardeningIT60.4After hardening
- Cylindrical grindingPrecision shafts and axlesIT6–IT50.2Precision shafts and axles
- PolishingFinish for coating or sealing—0.1–0.05Finish for coating or sealing
- Thread cuttingM2 standard, M1.6 on request6H / 6g3.2M2 standard, M1.6 on request
- CMM inspection (accuracy)MPE-E (1.5+L/333) µmup to IT5—MPE-E (1.5+L/333) µm
NB
General tolerances by default — GOST 30893.1, class m (medium). For tight ones — specify explicitly (IT / H / h / JS).
03 / Materials
Materials and tolerance by size
Material
Grades
Tolerance
Size range
Brass
LS59-1, L63
±0.005 mm
up to 250 mm
Steel
St3, 40Kh, 12Kh18N10T
±0.005 mm
up to 300 mm
Aluminium
AMg, AMts, D16
±0.01 mm
up to 300 mm
Non-ferrous alloys
Bronzes, zinc alloys
±0.01 mm
up to 200 mm
Plastics
PA6, POM, PEEK
±0.02 mm
up to 250 mm
04 / CNC machinery
The equipment we work on
Equipment class and key parameters. The exact machine list — under NDA in the questionnaire.
5-axis machining centre01 / 05
5-axis machining centre
Mazak VARIAXIS i-700
Complex geometries and undercuts in a single setup — no refixturing.
- Work envelope
- 700 × 700 × 500 mm
- Spindle
- up to 12,000 rpm
- Repeatability
- ±0.003 mm
- Tool magazine
- 30 tools
Wire EDM02 / 05
Wire EDM
Sodick AQ535L
Contour cutting of complex profiles and internal contours with IT7 tolerance.
- Work envelope
- 500 × 350 × 250 mm
- Thickness
- up to 250 mm
- Wire
- ⌀ 0.1–0.3 mm
- Accuracy
- ±0.003 mm
Swiss-type lathe03 / 05
Swiss-type lathe
Tsugami B0206-V
Serial turning of small precision parts from bar stock — the full cycle in one setup.
- Bar ⌀
- up to 20 mm
- Spindles
- 10,000 / 12,000 rpm
- Tools
- 27 stations
- Control
- FANUC 0i-TF Plus
Surface grinder04 / 05
Surface grinder
Okamoto ACC-1224ST
Plates, bases and guides — after heat treatment.
- Work table
- 600 × 300 mm
- Accuracy
- ±0.002 mm
- Surface finish
- Ra 0.2 µm
- Magnetic table
- —
Polishing station05 / 05
Polishing station
Manual + diamond paste
Surface finishing to a mirror finish and sealing joints.
- Surface finish
- Ra down to 0.02 µm
- Inspection
- SJ-410 profilometer
- For steels
- S136, 2316, 718H
- Application
- Optical, medical plastics
NB
Equipment class; the exact lineup and serial numbers — on request under NDA.
05 / Metrology and inspection
What we measure with
CMM — on every batch. Profilometer and microscope — for edges and per-operation Ra control. Reports — PDF and Excel.
Primary instrument
Coordinate measuring machine
Mitutoyo Crysta-Apex S 776
- Volume
- 700 × 700 × 600 mm
- Accuracy MPE-E
- (1.5 + L/333) µm
- Probe
- Renishaw
- Software
- MCOSMOS / GeoMeasure
Surface roughness tester
Mitutoyo SJ-410
- Rz range
- 350 µm
- Resolution
- 0.01 µm
- Parameters
- Ra, Rz, Rt, Rq, Rp, Rv
- Standards
- ISO 4287 / GOST 2789-73
Toolmaker's microscope
Mitutoyo TM-505
- Magnification
- up to 100×
- Stage
- 100 × 50 mm
- Inspection
- edges, chamfers, fine threads
Hardness tester
TR-5006 / Mitutoyo HR-320MS
- Scales
- HRC, HRB, HV, HB
- Inspection
- heat treatment, sampling
06 / DFM checklist
8 rules before sending a drawing
Run through the list — it saves quoting time and iterations. If something is not possible — state it explicitly, we will quote an alternative.
Rule 01 / 08
Internal pocket radii
Internal R ≥ ½ end mill ⌀
Sharp internal corners — EDM only. R 0.5 mm = ⌀ 1 mm ball-nose end mill.
Rule 02 / 08
Minimum wall thickness
Steel 0.8 mm · aluminium 1.2 mm · brass 1.0 mm · plastic 1.5 mm
Thinner walls deform during machining. Tell us if it is critical — we will find a solution.
Rule 03 / 08
Hole depth / ⌀ ratio
Up to 5:1 — standard drills. Up to 10:1 — deep-hole drilling (separate route).
Beyond 10:1 — special tooling and through-spindle coolant.
Rule 04 / 08
Threads
M2 — standard · M1.6 — on request · M1.2 — tapping only
Specify the pitch (M3×0.5 vs M3×0.35) and tolerance class (6H / 6g).
Rule 05 / 08
Internal corner radii on 5-axis
Internal R ≥ 0.5 mm (⌀ 1 mm end mill)
Reducing R multiplies cycle time — sometimes two passes are cheaper.
Rule 06 / 08
Default surface finish
Ra 3.2 — non-functional · Ra 1.6 — fits · Ra 0.8 — sealing
Below Ra 0.4 — grinding or polishing, a separate operation.
Rule 07 / 08
General tolerances
GOST 30893.1 class m (ISO 2768-mK) — by default
For tight ones — IT / H / h / JS on the drawing + CMM inspection.
Rule 08 / 08
Marking
Depth ≤ 0.15 mm · OCR-B font · min. height 1.5 mm
Laser / stamp / engraving — chosen by surface and batch size.
07 / Drawings and formats
What to send and how
We accept all major CAD formats. We also work from a sketch + 3D — DFM is agreed separately.
Minimum drawing content
DRAWING / EXAMPLE- 01Material grade with GOST / EN / AISI reference
- 02Delivery condition (rolled stock, heat treatment)
- 03General tolerances (GOST 30893.1 or ISO 2768)
- 04Surface finish (Ra per operation)
- 05Coating — type, thickness, GOST / ISO / AMS
- 06Marking — type, font, location
- 07Control dimensions for the CMM report
- 08Thread tolerance class (6H / 6g)
3D formats
06- ·STEP / STP (most preferred)
- ·IGES / IGS
- ·X_T (Parasolid)
- ·SLDPRT (SolidWorks)
- ·PRT (NX / Creo)
- ·JT
2D drawings
03- ·DWG / DXF
- ·PDF with title block and current revision
- ·Hand sketch + dimensions (via DFM)
08 / Finishing operations
Coatings and heat treatment
Passivation, laser marking and basic machining are done in-house; electroplating, heat treatment and complex coatings — via trusted partners.
Through trusted partners
Electroplating, heat treatment and complex coatings go to specialised shops under a defined procedure.
08
- Decorative anodisingGOST 9.301-86, An.Oks.nkhr8–25 µm, colour
- Hard anodisingMIL-A-8625 Type III25–50 µm, HV 400–500
- Zinc platingGOST 9.301-866–20 µm, chromating
- Nickel platingGOST 9.301-866–25 µm
- Chemical oxidising (Cu)GOST 9.305-84Silver-grey, protective
- Silver / gold electroplatingPer specificationPer drawing
- Heat treatmentGOST 4543-71Hardening, tempering, normalising
- Electropolishing—Ra down to 0.05 µm
09 / Case studies
From real work in this area
A few case studies that show what we actually do. An extended pack with reports and process video is available under NDA.
All case studies
Parts01 / 03
2024
Oil & gas · 2024
Precision bushing for shut-off valves
Stainless steel batch 12Kh18N10T, measurement reports per the plant standard.
- Steel
- 12Kh18N10T
- Tolerance
- ±0.005 mm
Open case study
Parts02 / 03
2026
Data centres · 2026
Liquid cooling for data centres and AI servers
Stainless steel AISI 321 / AISI 316, measurement reports per factory procedures.
- Steel
- AISI 321/316
- Tolerance
- ±0.005 mm
Open case study
Parts03 / 03
2024
Instrumentation · 2024
Special screw in 12Kh18N10T stainless steel
Serial production of special fasteners to the customer's drawings. Thread and geometry inspection on every batch.
- Material
- 12Kh18N10T
- Inspection
- gauges + CMM
Open case study
10 / Documentation
What we deliver
Prepared to the customer's requirements, including plant-level regulations.
Design documentationProcess routingCMM reportsMaterial certificate
11 / FAQ
Frequently asked questions
01What 3D model formats do you accept?
STEP (preferred), IGES, X_T (Parasolid), SLDPRT, PRT (NX/Creo), JT. 2D — DWG, DXF, PDF with the current revision. Without a 3D model we work from a sketch + dimensions — DFM is agreed separately.
02What is the minimum order quantity?
From a single part — for a prototype. A series usually starts at 10 pcs. A fully optimised process route becomes cost-effective from 50 pcs.
03Do you work with stainless and heat-resistant steels?
12Kh18N10T (AISI 321), 08Kh18N10T (AISI 304L), 10Kh17N13M2T (AISI 316Ti), 12Kh13 — regular stock. Heat-resistant and tool steels — on request.
04What is the standard inspection scope?
Batches up to 50 pcs — every part, CMM report per batch. 50–500 pcs — 100% on critical dimensions + 10% sampling. >500 pcs — sampling per AQL 1.0 (GOST R ISO 2859-1). 100% inspection available on request.
05What form and position tolerances do you hold?
Flatness and parallelism — down to 0.005 mm/100 mm. Perpendicularity — down to 0.01 mm. Radial runout — from 0.005 mm. Exact values depend on the operation and part size — specify them on the drawing per GOST 24642.
Inquiry
Send a drawing —
we'll quote within 24 hours
Fill in the form or contact us directly — any channel works.
ПН–ПТ · 09:00–18:00 · МСК