Four self-owned factories with key processes in-house
Tianhu forging, Huashan CNC, Licun precision machining and Tianying surface treatment keep forging, machining and plating under internal control.
San Wang Metal
Quality supports survival. Credibility builds the future. Focused on fully integrated hydraulic fluid connection manufacturing.
6lines
forging production lines
including a 630T press500sets
CNC machines
Huashan and Licun factories2lines
automated surface treatment lines
Zinc Plating & Zinc-Nickel Alloy400h+
salt-spray testing
zinc-nickel process12million
annual output
hydraulic component capacity7days
sample lead time
after drawing confirmation
Product Range
Products
Four self-owned factories provide fully integrated production for hydraulic connection, sealing and control components.
View All Products
Core Product
Adapters · SR Series
Designed to Japanese SR standards and hot forged in-house, covering straight adapters, elbows and swivel adapters across 200+ standard models.
BSP · PF · SAE · JIC / 700 bar
Standard Product
Hydraulic Hose Assemblies
Fittings are produced by San Wang and assembled with hose brands such as Parker, Gates, Eaton and Bridgestone for common construction machinery specifications.
SAE / EN / ISO · up to 700 bar
Custom Product
Hydraulic Valve Blocks
Integrates multiple hydraulic control elements into compact blocks with fewer leakage points, supporting drawing-based and sample-based custom manufacturing.
Custom from drawings · up to 700 bar
More Support
Hydraulic Couplers / O-Rings
Covers coupling and sealing requirements in fluid connections for construction machinery, agricultural machinery and industrial hydraulic systems.
NBR · FKM · EPDM / NOK-grade options33years
manufacturing experience
Since 19934factories
self-owned factories
integrated in-house productionISO
triple-system certification
9001 · 14001 · 450010.01%
product defect rate
Japanese and Korean control standards
Why Sanwang
Why Choose San Wang Metal
Process parameters are continuously upgraded to Japanese OEM requirements
Passivation, coating thickness and salt-spray validation are tightened according to customer requirements, with XRF inspection for key batches.
On-time delivery during the most difficult pandemic period
When global supply chains were under pressure in 2020, San Wang Metal kept delivering and proved supply-chain resilience through real orders.
OEM relationships are strictly confidential and customer information is not disclosed
When supporting international brands as an OEM supplier, we follow confidentiality requirements and never disclose cooperation details without authorization.
Manufacturing Chain
Fully Integrated Manufacturing Flow
From drawing confirmation to batch delivery, four self-owned factories cover every key step.
Forging
Tianhu forging factory has six production lines including a 630T press, self-developed graphite dies and one-step hot forging.
Tianhu ForgingCNC Machining
Huashan and Licun operate 500 CNC machines with stable machining accuracy and inspection support for batch consistency.
Huashan · LicunSurface Treatment
Tianying factory handles trivalent chromium zinc plating, zinc-nickel alloy and blackening to meet RoHS 2.0 and corrosion-resistance needs.
Tianying Surface TreatmentInspection and Shipment
Dimensional reports, material certificates and salt-spray reports can be shipped with goods as required, with flexible trade terms.
Flexible trade terms
Long-term Partners
Long-term specified supplier for leading global OEMs
San Wang Metal is deeply embedded in customer supply chains, supporting from development through mass production delivery.
KubotaKUBOTA
Hitachi Construction MachineryHITACHI
YanmarYANMAR
CaterpillarCATERPILLAR
DoosanDOOSAN
JCBJCB
Selected long-term customers · San Wang Metal keeps all cooperation relationships confidential · No details are disclosed without authorization
Application Industries
Industries Served
Serving demanding applications including construction machinery, agricultural machinery, marine and offshore, oil drilling and precision industry with long-term hydraulic connection and sealing solutions.
Core Fields
Construction Machinery & Agricultural Machinery
Hydraulic pipelines, hose assemblies, adapters and sealing parts for excavators, loaders, bulldozers, tractors and combine harvesters, covering key positions from main pumps to work equipment.
Extended Fields
Marine & Offshore Engineering & Oil Drilling
Hydraulic systems on ships, offshore platforms and drilling rigs face high salt spray, humidity and pressure shock. San Wang Metal can support zinc-nickel salt-spray validation, SUS316 chloride corrosion resistance and custom special-material parts from drawings.
Extended Fields
Precision Industry & Aviation Ground Equipment
Aviation ground support equipment, precision hydraulic systems and high-end industrial equipment require strict material grades and machining accuracy. San Wang Metal can machine SUS304/316 stainless steel, titanium alloy, copper alloy and other high-end materials from drawings or samples.
Fast response, usually within 24 hours
Looking for a long-term hydraulic component manufacturing partner?
If you need a supplier with self-owned factories, stable delivery and engineering support from the development stage, send drawings or parameters and we will respond clearly within 24 hours.
- Four self-owned factories, with key processes handled in-house
- MOQ from 500 pcs, samples typically delivered in 7 working days
- Material certificates, dimensional reports and salt-spray reports available as required
- FOB / CIF / EXW shipments via Qingdao Port
Send Inquiry
The more complete the information, the faster we can quote. Please include key specifications, quantity and application conditions.