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Services · Engineering & Support

Engineering services around the supply line

We review BOMs, part numbers, PLC/HMI programs and applications, then confirm scope before work starts. Cross-brand options use the wording candidate replacement — subject to engineering review. Automation Liberty also runs the China sourcing function for distributors, OEMs and system integrators: supplier qualification, technical evaluation, production coordination, quality control and logistics as one managed programme. Scope, inspection standard and commercial terms are agreed before work starts.

Headquartered in Shenzhen, with a regional service centre in Bangkok for Southeast Asia.

How the service work is handed over

Stage 01 / 03

BOM review

We read the line list, normalize the model information you provide and separate quotation-ready records from items that need engineering review.

You get

You receive a reviewed line list, engineering questions and the quotation scope for lines that are ready to proceed.

Review checks and deliverables
What we check
  • Check manufacturer names, part numbers, quantities and descriptions.
  • Group lines by function, family and review status.
  • Flag missing voltage, I/O, protocol, safety or lifecycle information.
Deliverables
  • Reviewed line list
  • Engineering questions
  • Quotation scope
Stage 02 / 03

Cross-reference support

We compare the installed part’s role, interfaces and software requirements before naming any candidate replacement — subject to engineering review.

You get

You receive a cross-reference note, a difference register and an RFQ-ready scope where the evidence supports one.

Review checks and deliverables
What we check
  • Identify the existing part and machine role.
  • Compare electrical, communication, mechanical and software requirements.
  • List wiring, protocol, mounting or validation work that cannot carry over unchanged.
Deliverables
  • Cross-reference note
  • Difference register
  • RFQ-ready scope
Stage 03 / 03

Programming hand-off

We scope PLC logic, HMI screens, tags and communication settings from the source files, I/O list or functional description you can provide.

You get

You receive the scoped project work, mapping notes and open items that still need site access or owner decisions.

Review checks and deliverables
What we check
  • Review source projects, functional descriptions and network topology.
  • Re-implement approved logic, screens and communication settings inside the agreed boundary.
  • Separate completed work from site tests and unresolved functions.
Deliverables
  • Program project
  • I/O and tag map
  • Open-item register

What usually goes wrong, and what we do about it

Most companies already know China can supply the part. These five problems are what stop them, in the order they normally appear.

You cannot tell which Chinese supplier is actually reliable.

Supplier qualification is a recorded step: a candidate is assessed against the exact part or process you need, and the record states what was verified and what was not.

Requirements get lost between your engineers and the factory.

One China-based team holds both the engineering and the procurement conversation, so the requirement that reaches the factory is the requirement you wrote.

A cheaper part turns out not to fit the machine.

Technical evaluation comes before any supplier is proposed: interfaces, ratings, protocols and environment are checked against your application, and open questions are listed, not assumed.

Quality drifts after the first order.

The inspection scope and sampling standard are agreed in writing before production, and applied to each run rather than to the first sample only.

There is nobody on the ground when something goes wrong.

Engineering and procurement staff are based in Shenzhen, with a regional service centre in Bangkok covering Southeast Asia.

What the programme delivers

Supplier qualification

Identify and assess candidate manufacturers against the exact part, assembly or process required, and record what was checked.

Technical evaluation

Check interfaces, ratings, protocols and operating environment against your application before a supplier is proposed.

Cost optimization

Compare candidate constructions and sourcing routes so the trade-offs are visible, instead of reducing the decision to one price.

Production coordination

Hold schedule, revisions and change points between your engineering team and the factory throughout the run.

Quality control

Apply the agreed inspection scope and sampling standard to each production run, with findings recorded against the order.

Logistics management

Consolidate, document and route the shipment, including the export paperwork the destination requires.

What we source

The published catalogue covers automation and motion control. Everything else is sourced to your specification or drawing, because those items are defined by your design rather than by a standard model number.

Sourcing categories and how each one is handled
CategoryTypical itemsHow it is handled
Industrial automation componentsPLC, HMI, VFD, servo drives, industrial communicationPublished catalogue
Motion control systemsIntegrated servo wheels, lifting and rotary modulesPublished catalogue
Electrical componentsContactors, terminals, power supplies, cable and enclosure hardwareSourced to your specification
Mechanical partsMachined, cast, sheet-metal and moulded partsSourced to your drawing
Customised assembliesSub-assemblies and panel builds to your designBuilt to your specification
OEM manufacturingComplete units produced to your designScoped per programme
Testing equipmentApplication and production test rigsSourced to your specification

How we can be engaged

The commercial model follows the shape of the work. Rates, fees and terms are agreed for the specific scope before work starts.

Engagement models and what is agreed before work starts
ModelSuited toAgreed before work starts
Project-based fixed pricingA defined scope with a clear end pointDeliverables, milestones and the fixed fee
Engineering service contractContinuing engineering support alongside supplyCovered activities, response expectations and term
Hourly consultingA specific question or a short reviewRate, estimated hours and the deliverable
Long-term sourcing partnershipAn ongoing category managed on your behalfCategory scope, inspection standard and review cadence

From requirement to after-sales

  1. Requirement analysis

    We read the application, drawing or BOM and separate what is specified from what still needs a decision.

  2. Supplier selection

    Candidate manufacturers are qualified against that requirement, with the assessment recorded.

  3. Technical solution

    Construction, interfaces and options are confirmed with your engineers before anything is ordered.

  4. Procurement

    Orders are placed against the agreed specification, revision and quantity.

  5. Manufacturing coordination

    Schedule, revisions and change points are held between your team and the factory.

  6. Logistics

    Shipments are consolidated, documented and routed with the paperwork the destination requires.

  7. Installation support

    Commissioning questions are answered by the same engineers who scoped the supply.

  8. After-sales service

    Replacements, documentation and follow-up stay with the order record.

How every service runs
Step 01

Send

BOM, part number, drawing, or nameplate photo.

Step 02

Separate

Published, candidate, or missing, marked line-by-line.

Step 03

Ask

Voltage, I/O, protocol, environment facts required.

Step 04

Quote

Reviewed model, quantity, terms, existing documents.

Step 05

Support

Review engineers answer commissioning questions.

What the chain produces

  • A batch of finished control boxes standing on pallets in a workshop
    Customer site — a batch of finished assemblies.
  • Stainless control panel on a water treatment machine with an interface and selector
    Customer site — a water treatment control panel.
  • Heating system control cabinet with a drive, breakers and terminal rails
    Customer site — a heating system cabinet.

Questions buyers ask first

How do I find a reliable automation supplier in China?

Start from the requirement, not the supplier list — a manufacturer can only be assessed against a specific part or process. Our qualification step records what was verified for that requirement and what was not, so the decision is reviewable rather than taken on trust.

What does supplier qualification actually check?

Whether the manufacturer genuinely produces the item, whether the construction matches your specification, and what documentation and testing they can provide. The output is a written record, with unverified points stated.

Can you source parts that are not in your product catalogue?

Yes. Electrical components, mechanical parts, custom assemblies, OEM manufacturing and test equipment are sourced to your specification or drawing — those items are defined by your design, not a model number.

How is quality controlled on a China sourcing programme?

The inspection scope and sampling standard are agreed in writing before production, then applied to every run with findings recorded against the order — not to the first sample only.

Do you work on a project basis or hourly?

Both, plus engineering service contracts and long-term sourcing partnerships. The model follows the shape of the work; deliverables and terms are agreed before work starts.

What we are not
  • We are an independent engineering and sourcing support partner; competitor names identify review targets only.
  • We do not auto-convert STEP 7, GX Works, RSLogix or TIA Portal programs — logic is re-engineered in CoDeSys with explicit I/O mapping.
  • We do not certify your machine — system-level approvals remain the integrator’s responsibility; we supply component-level documentation.
  • We are an independent sourcing and engineering partner. Nothing on this page is a manufacturer appointment or an exclusive distribution claim.
  • A qualified supplier is not an endorsement. Qualification records what was checked against a stated requirement, and what remained unverified.
  • Inspection scope and sampling standard are agreed for each programme. This page implies no standing quality guarantee.
  • We do not certify your machine. System-level approval remains with the responsible integrator or equipment owner.
  • Capacity, lead time, price and payment terms are confirmed at quotation for the specific scope, quantity and destination.

Start with a scoped review

Send your program, BOM or application — an engineer confirms scope before you commit.

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