JBM is a company consists of Casting, Forging and CNC
Machining capability. It has two casting production line,
product range from 0.03KG-120KG. Casting process covers
Investment Casting, Sand Casting and Lost Foam Casting.
Wide range of material is available like Carbon Steel, Alloy
Steel, Stainless Steel, Ductile Iron, Cast Iron. Cast tolerance
controlled tighter than GB standard. CT4~5 for investment
casting, CT8-9 for sand casting, CT7-8 for lost foam casting.
Forged part is range from 0.1KG~60KG. Complicated structure
can be produced. Materials are mainly for Carbon Steel and
Alloy Steel, heat-treatment is applied. Our forging part can
reach tolerance for CT9, which results in less material and
machining that greatly reduced the manufacturing cost.
Forging machine capacity is from 650 tons to 5000 tons,
which can greatly meet your various part designs.
CNC and VMC with 4 axis machines enables us meet your
various requirements. Advanced equipments support us
to provide customers with high precision parts. For batch
production tolerances we can meet, Diameter tolerance
is 0.02mm, Roughness reach Ra 0.6. True positions can
meet 0.05mm. SPC, CPK measurement tools are also
applied to production analysis. Special de-bur tool is
applied for sharp edges. Ultra-sonic cleaning machine is
used to remove grease, oil or any other dirty.
Detailed Packing Instruction is prepared for each part
before package to avoid any scratch, number mess or
other packing errors.