Precision Welding & Fabrication

Welded equipment frames and mechanical structures, with a focus on semiconductor equipment.

From fit-up and welding to correction, assembly and dimensional inspection, KLH reviews the fabrication route against your drawing and project requirements.

Welding distortion control · Dimensional stability · Project-specific inspection · First article inspection (FAI)

KLH frame components fixtured on a welding table
Pre-welding frame fit-up and fixturing at KLH. Johor Bahru, Malaysia.
ISO 9001:2015 Certified quality management system
Semiconductor manufacturing experience 11+ years in Tier 1 semiconductor equipment manufacturing
Johor Bahru production Singapore headquarters

Fabrication services

Equipment frames, welded structures and prototype work, with mechanical assembly and inspection requirements considered as part of the scope.

Precision fabrication & welding

TIG and MIG welding for steel and aluminum structures, with attention to the drawing, material and weld access.

  • Workholding on precision welding tables
  • Stress-relief planning where required
  • Tolerance control against agreed drawing requirements
Materials and project scope

Equipment frames & structures

Precision welded equipment frames and modular structures for semiconductor equipment applications.

  • Frame fit-up and structural alignment
  • Welding distortion control
  • Correction, assembly and agreed dimensional checks
Frame fabrication approach

First article & process development

Supplied-design review, first article fabrication and development of a repeatable production route.

  • Manufacturability and acceptance review
  • Fabrication and assembly route definition
  • First article inspection and production records
Discuss a first article

Mechanical assembly & integration

Modular framework assembly and multi-component mechanical integration are included where agreed. Key interfaces and dimensional requirements are reviewed alongside fabrication.

Scope confirmed per project

Control from drawing to assembly

The critical dimensions and functional interfaces guide the manufacturing route. Stress relief, correction and inspection stages depend on the part and project.

  1. 01

    Review the requirement

    Identify material, geometry, critical dimensions, datums, joining requirements and acceptance criteria.

  2. 02

    Fit-up & welding

    Consider structural alignment, workholding and weld access, with attention to welding distortion.

  3. 03

    Stress relief & correction

    Plan the applicable route and review specified dimensions after stress relief and correction where required.

  4. 04

    Mechanical assembly

    Assemble the framework and mechanical interfaces against the agreed design requirements.

  5. 05

    Dimensional verification & first article inspection (FAI)

    Check the agreed characteristics and prepare first article inspection documentation where required.

Confirm the scope before fabrication

Materials
Steel and aluminum alloys, subject to drawing review.
Welding processes
TIG / MIG
Tolerances
Agreed for the specific drawing, geometry and process route.
Inspection
Scope, calibrated instruments and metrology are confirmed per RFQ. External dimensional verification is arranged where required.

Fabricated in Johor Bahru

KLH’s production facility is located in Kawasan Perindustrian Pandan. Discuss your fabrication scope or arrange a facility and capability review.

KLH workshop aisle and welding workstations
Workshop aisle and welding workstations at KLH. Jalan Waja 2 · Johor Bahru

Visit discussions can cover the project route, workholding, assembly, inspection requirements and supporting documentation.

Discuss a facility visit

Quality, inspection & documentation

KLH Technologies Sdn. Bhd. has ISO 9001:2015-certified quality management covering the following service scope:

  • High-precision mechanical fabrication and welding
  • Semiconductor equipment frames and structures
  • Process development and prototyping

Inspection requirements are agreed for each project. Quality management certification does not establish a universal dimensional tolerance.

SCC/INT/2606KE/29022 Certificate verification: qfscerts.com

Project documentation

Material and production traceability, welding procedure records where required, and agreed inspection or FAI documentation.

Dimensional inspection

Critical characteristics, calibrated instruments and metrology are confirmed per enquiry, with external dimensional verification where required.

Nonconformance & corrective action

Nonconforming work is addressed through segregation, root-cause review and corrective-action tracking within the project workflow.

Manufacturing experience

KLH brings equipment-frame fabrication, welding and mechanical assembly together in Johor Bahru, with a Singapore headquarters.

Our focus is practical collaboration: understanding the requirement, agreeing the fabrication and inspection scope, and supporting the project with appropriate records.

Download company profile

Ho Mun Wei

Founder & Principal Specialist

More than 11 years of Tier 1 semiconductor equipment manufacturing experience, including leading frame fabrication teams.

His experience covers welding, stress relief, correction, final assembly and first article inspection. These stages inform KLH’s approach to dimensional stability and project review.

11+ years refers to the founder’s manufacturing experience.

Discuss confidentiality before sharing drawings

Start with a general project description. Discuss NDA requirements and the permitted use of technical information before sending confidential drawings or files.

Agree the requirements

Identify the information involved, project scope and confidentiality expectations at the start of the discussion.

Project information & publicity

Customer drawings, identities and project photographs are not offered as public website material without clear permission.

Before we start

Service fit, drawings, tolerances and the information needed for a useful discussion.

What does KLH specialise in?

Precision welded equipment frames and structures for semiconductor equipment, with fabrication, welding, mechanical assembly, prototyping and process development.

What experience leads KLH?

Founder Ho Mun Wei has more than 11 years of Tier 1 semiconductor equipment manufacturing experience, including leading frame fabrication teams and working across fabrication, correction, assembly and FAI.

What tolerances can KLH support?

Tolerance requirements, including 0.2mm on specified key dimensions or areas, are assessed against the drawing, material, geometry, fabrication route and inspection method. Feasibility and acceptance criteria are agreed for each project.

Which materials and processes are supported?

TIG and MIG welding for steel and aluminum alloys. Material and inspection requirements are reviewed against the project drawings.

What should I include in an enquiry?

Drawing revision, material, quantity, key dimensions and tolerances, stress-relief requirements, inspection or FAI expectations and target delivery date. Agree confidentiality requirements before sending sensitive files.

Let’s review your fabrication requirements

Begin with your project scope, material, quantity and target delivery date. Confidential drawings can follow once confidentiality requirements are agreed.

  1. Initial discussion
  2. Confidentiality requirements
  3. Drawing & scope review
  4. Quotation & delivery agreement
  5. Fabrication & inspection

Contact sales

Mon–Fri · 8am–6pm MYT

Prepare your enquiry

  • Drawing revision, material and quantity
  • Critical dimensions, datums and tolerance requirements
  • Stress relief, finish, assembly and inspection expectations
  • Target delivery date and confidentiality requirements