Precision CNC machining in progress

Precision machining
for critical valve
components.

View capabilitiesQuality inspection
15+Years of experience
23CNC machines
1,800 Tonsof precision components shipped worldwide in 2025

01 / Why Maplestone

A trusted partner inprecision machining.

Based in Suzhou, China, Maplestone operates 23 CNC machines and has a long track record of supplying precision-machined components to customers in the oilfield and other demanding industries.Engineering review, controlled production and documented inspection keep every order on track.

Maplestone Machine production workshop in Suzhou, China
02 / Materials

Superalloy expertise

From round bar to custom forgings, our long-standing network of approved, certified suppliers ensures reliable supply, with EN 10204 3.2 inspection certification available.

InconelHastelloySuper DuplexStainless Steel
Nickel-alloy ring, disc and ball-valve bonnet forged blanks

03 / Machining capacity

Our machining rangeClearly defined.

Turning
Drilling
Milling
Tapping
01 / TurningMaximum turning envelope
Ø600 mmH 700 mmMAXIMUM TURNING ENVELOPE
Ø600×H700
MM OD × HEIGHT
  • 17 CNC lathes
  • Hyundai & Mazak
  • Slant-bed turning centers and VTLs
02 / VMCMachining envelope
Y 600X 800Z 550
800×600×550
mm · X length × Y width × Z height
  • 6 vertical machining centers
  • Mazak and other qualified brands
  • All equipped with a fourth axis

04 / Quality inspection

Measured againstthe drawing.Recorded for confidence.

Dimensional verification
CMM inspection accuracy
0.007 mm
CMM maximum measuring volume
2000 × 1200 × 1000
MM · W × D × H

Calibrated inspection instruments and gauges verify critical dimensions; every result is digitally recorded for traceability.

Drawing-based verification
Digital traceability
CMM probe inspecting a precision-machined valve componentCMM inspection
Critical feature controlInspection focused on the features that matter to fit, sealing and function.

05 / Components We Machine

Parts made for demanding service.

F51 super duplex machined valve component
F51(Duplex 2205 · UNS S31803 · EN 1.4462)
F55 super duplex machined valve component
F55(Super Duplex · UNS S32760 · EN 1.4501)
Hastelloy C276 valve body
Hastelloy C276(UNS N10276 · W.Nr. 2.4819)
Inconel 625 precision-machined valve component
Inconel 625(UNS N06625 · W.Nr. 2.4856)
Inconel 825 machined valve component
Inconel 825(UNS N08825 · W.Nr. 2.4858)
Inconel 825 machined component
Inconel 825(UNS N08825 · W.Nr. 2.4858)
Inconel 825 machined valve component
Inconel 825(UNS N08825 · W.Nr. 2.4858)
F316 precision-machined flanges
F316(SS 316 · UNS S31600 · EN 1.4401)
06 / Global delivery

From drawingto delivery

Efficient delivery from Suzhou to the Middle East, Europe and North America.

Illustrated delivery routes from Suzhou to the Middle East, Europe and North America

Request a Quote

Send us your drawing.We’ll take it from there.

We’ll respond to your email within 24 hours.

Emailsales@mstcns.comPhone+1 778 791 0068
Suzhou workshopNo. 37 Juxing RoadBeiqiao Town, Suzhou, Jiangsu, China
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