Process

Manufacturing Scope & Process

Manufacturing Scope & Process

All manufacturing processes strictly comply with the approved Approval Drawing and specifications as the top priority. Quality is assured through In-Process Inspection at every production gate.

Casting / ForgingStandard
Materials: High Chrome, Mn Steel, etc.
Shaft casting, precision casting
Heat treatment included
Customer Spec compliance
MachiningStandard
CNC Lathe / Milling / Boring
Large-scale machining capability
Precision tolerance management
100% approval drawing compliance
Fabrication / WeldingStandard
WPS/PQR maintained and applied
Certified welders (Welder Qual.)
NDT inspection (RT/UT/MT/PT)
Weld inspection records
Surface Treatment / CoatingOptional
Wear-resistant coating / Hard-facing
Paint (Paint) to specification
Shot blasting / Primer
Applied per customer requirements
Dynamic BalancingStandard
Impeller / shaft rotating assemblies
ISO 1940 grade application (G2.5/G6.3)
Balancing report provided
Precision balancing facility
InspectionStandard
Dimensional inspection (CMM / Gauge)
Material analysis (Spectrometer)
Hardness testing (HRC / HB)
Inspection report issued
Assembly / Functional TestOptional
Shop assembly
Interference check & marking
Hydrostatic test (Hydro Test)
Performed upon request
Tooling / PatternStandard/Optional
Dedicated pattern / mold fabrication & storage
Inspection jig & fixture
Maintenance / history management
Integrated tool management

All manufacturing processes prioritize compliance with the approved Approval Drawing and specifications. Quality is assured through In-Process Inspection at every stage.

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Request a Quote or Technical Consultation

SEATECH Co., Ltd manufactures and exports dredging parts — from pump internals to steel structures — strictly per your approval drawings. Send us your inquiry, and we will review it and respond promptly.

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