Organized batches of aluminum housings, steel shafts, brass bushings and molded covers in protective trays

家 / サービス / 受託製造

OEM COMPONENT PROGRAMS · DONGGUAN, CHINA

Contract Manufacturing Services for Custom OEM Parts

Metal and plastic component production, coordinated from DFM review to repeat orders and delivery.

TOPS Precision supports OEMs, engineering companies and industrial equipment manufacturers worldwide with in-house CNC machining, ダイカスト, sheet metal fabrication and injection molding.

From a prototype or pilot run to recurring orders, we help simplify supplier coordination and manufacture against your approved drawings and specifications.

Share drawings, 年間生産量, 材料, quality requirements and delivery location for an engineering review.

Four core processes. 社内.CNC machining · Die casting
Sheet metal · Injection molding
ISO 9001:2015Quality management
10+ 年Manufacturing experience
±0.005 mmSuitable CNC features only*
100+ 材料Metal and plastic options
Prototype → RepeatProduction program support

More than individual machining operations

OEM Contract Manufacturing Solutions

Contract manufacturing lets an original equipment manufacturer outsource a defined scope of component production to a specialist partner. TOPS focuses on custom-engineered metal and plastic parts, connecting manufacturing with production planning, quality verification and international order fulfilment.

REVIEW

エンジニアリング & DFM

Review drawings, 製造可能性, critical features and the production requirements before agreeing a route.

SOURCE

Material Procurement

Source the specified grade and condition, review availability and define the required material evidence.

MAKE

Parts Manufacturing

Plan and carry out machining, 鋳造, fabrication or molding for the agreed part numbers and quantities.

VERIFY

品質検査

Define inspection checkpoints, critical dimensions and acceptance criteria before production begins.

REPEAT

Repeat Production

Manufacture recurring orders against approved specifications and clearly identified revisions.

DELIVER

International Delivery

Prepare agreed packaging, order identification and shipping documents, then coordinate delivery arrangements.

  1. Define the scope部品, 材料, quantities and responsibilities
  2. Approve the revision描画, tooling and acceptance requirements
  3. Verify the batchChecks and records against the agreed plan
  4. Release for deliveryAcceptance, identification and packaging

Core production performed in-house

Custom Metal and Plastic Contract Manufacturing Capabilities

Choose the manufacturing route for the program, not just the first part. ツーリング, inspection and secondary operations are assessed with the drawing, forecast and expected order pattern.

Sheet Metal Contract Manufacturing component examplesIN-HOUSE CORE PROCESS

Sheet Metal Contract Manufacturing

切断, 曲げ, forming and fabrication of panels, enclosures and mechanical structures.

Program fit: 機器カバー, 電子機器の筐体, brackets and repeat fabricated assemblies.

Explore Sheet Metal →

*Tolerances down to ±0.005 mm apply to suitable CNC-machined features after review. They are not a general tolerance for every cast, molded or formed part. Surface-finishing location and any outside processing are identified in the quotation rather than assumed to be in-house.

Make responsibilities visible before an order

What TOPS Manages During Your Contract Manufacturing Project

A useful outsourcing agreement defines the work, the approval points and the evidence needed to accept a batch. The table below provides the starting framework for that conversation.

Program activityTOPS coordination scopeBuyer approval / input
Engineering reviewDrawing and tolerance review, material selection and DFM.Release current drawings; identify application and critical features.
調達Specified raw material procurement, verification requirements and supplier coordination.Approve grade, condition and any nominated material source.
ツーリング型, fixture and machining setup preparation where required.Agree tooling scope, ownership, approval criteria and any changes.
Production planningQuantities, ルーティング, milestones and production scheduling.Confirm forecast, release quantities and required dates.
製造業In-house CNC, 鋳造, molding and sheet metal; agreed secondary operations.Approve the route and identify any restricted or nominated processes.
品質Inspection planning, dimensional checks and agreed material/process records.Define acceptance criteria, sampling and report requirements.
Engineering changesReview revision changes before implementing a changed specification.Approve the new revision and disposition of existing stock or WIP.
Order fulfilment包装, 識別, shipping documents and international delivery coordination.Confirm destination, packaging requirements and commercial delivery terms.

Performed directly

CNC加工, ダイカスト, sheet metal fabrication and injection molding are completed in-house at TOPS. The agreed program scope connects these processes with engineering review and quality control.

Secondary processing & 調達

Raw materials and secondary processes follow the approved specification. Finishing location and any external processing responsibilities are confirmed during quotation, including how requirements and acceptance records are passed between operations.

From a first build to recurring releases

Scalable Contract Manufacturing from Prototype to Repeat Production

01 · DEVELOP

プロトタイピング

Establish fit, function and the features that control the component’s performance.

範囲: CAD and drawing review, 材料の選択, prototype manufacture and DFM adjustments.

Approval gate: Approve the design direction and required changes before committing to the production route.
02 · VALIDATE

Pilot & 少量生産

Check the proposed manufacturing route before relying on it for recurring releases.

範囲: 小さなバッチ, tooling or fixture validation where relevant, critical-feature inspection and report review.

Approval gate: Confirm the approved specification, inspection checkpoints and production-readiness requirements.
03 · REPEAT

Repeat Production

Support recurring part orders against a controlled manufacturing baseline.

範囲: Approved drawing revisions, 材料要件, production planning, repeat checks and coordinated shipments.

Approval gate: Approve any revision, schedule or scope change before it is implemented.
Not every part needs production tooling.

CNC machining can suit lower quantities or complex features. Die casting and injection molding become attractive when volume, geometry and tooling economics justify them. The production forecast should inform the process decision.

Repeatability is a program requirement

Quality Control for OEM Contract Manufacturing

One acceptable prototype is not enough for a recurring program. Quality requirements must connect material, プロセス, critical dimensions and final acceptance across subsequent batches.

  1. 材質の検証

    Review the specified grade, condition and certificates. Agree incoming checks and traceability requirements.

  2. 最初の記事の検査

    Verify agreed critical dimensions against the approved drawing and review the first-article record.

  3. インプロセスモニタリング

    Check designated characteristics during production, using intervals and methods suited to the process risk.

  4. 最終検査

    Confirm the manufactured parts against the agreed acceptance criteria in the required final condition.

  5. Production Records

    Prepare the agreed dimensional reports, material evidence and batch-related documentation for release.

Inspection personnel and measurement equipment from the existing TOPS website photo library
Inspection equipment & ドキュメント

三次元測定機, optical measurement and suitable gauges are selected around the feature. XRF may support appropriate alloy screening. Specify FAI, 寸法レポート, マテリアル証明書, RoHS documentation and CoC during quotation.

Specify report format, critical characteristics and traceability requirements at RFQ stage. Availability and disclosure of sample inspection records are agreed within the project scope.

ISO 9001:2015 is a quality management system certification. It does not automatically guarantee a particular tolerance or aerospace, medical or automotive approval. Specialist requirements must be identified and agreed for the project.

Keep scope and revisions under control

Reliable Production Planning and Supplier Coordination

OEM購入者向け, supply continuity depends on practical decisions: the correct material, an approved revision, defined checks and a schedule that reflects the actual scope.

CNC machining workshop image from the existing TOPS website library

材料の入手可能性

Review specified alloys and engineering plastics against the forecast. Identify stock condition, procurement lead times and any source restrictions before confirming a schedule.

Production scheduling

Agree production milestones, release quantities and required dates. Establish the contact and communication points for order status and changes.

Engineering change control

Review material, ツーリング, inspection and WIP effects before implementing a new drawing revision. Agree the effective order or batch and treatment of existing parts.

Repeat order consistency

Reference the approved drawing, 材料, route and inspection requirements on each repeat release. Discuss changes rather than substituting an assumption for approval.

Secondary processing

Coordinate heat treatment, 陽極酸化処理, メッキ, powder coating and other agreed operations. Review dimensional effects and which requirements apply after finishing.

包装 & ロジスティクス

Define packaging, part identification, shipping documents and international delivery arrangements. Confirm destination, commercial terms and any special protection needs.

Program-specific arrangements are agreed during quotation. This page does not advertise VMI, consignment stock, blanket purchase-order programs, ERP integrations or guaranteed supply agreements.

Coordinate the finished component

Materials and Surface Finishes for Contract-Manufactured Parts

Material and finishing requirements belong in the program scope. State the exact grade, 状態, coating and final inspection requirements rather than relying on a general material family.

Material category例Typical application / レビュー
アルミニウム6061, 5052, 7075, A380ハウジング, brackets and lightweight components; wrought and casting grades are process-specific.
ステンレス鋼304, 316, 17-4 PHIndustrial components and parts requiring specified corrosion resistance.
炭素 / alloy steels1045, 工具鋼シャフト, fixtures and machine components with agreed condition or hardness.
真鍮 & 銅C360, C260, 銅継手, conductive parts and mechanical components.
Advanced alloysチタン, インコネルSpecialized engineering components, subject to exact alloy and route review.
エンジニアリングプラスチックABS, POM, パソコン, ピーク, ナイロンハウジング, 絶縁体, sliding components and other material-appropriate parts.
陽極酸化処理硬質アルマイト処理メッキ危険性エレクトロポリッシングパウダーコーティング研磨熱処理

We review how secondary operations affect fit, surface condition and acceptance. Finishing location and any external process responsibilities are confirmed with the quotation.

Defined component scope for industrial buyers

Contract Manufacturing Solutions for Industrial OEMs

ROBOTICS & AUTOMATION

ロボット工学 & オートメーション

Actuator components, ジョイント, grippers and precision motion-system parts.

Explore Automation Applications →

Applications describe component families, not a claim of industry-specific certification or product approval. Actual customer projects and any special requirements should be reviewed separately.

Make the sourcing decision easier

Why Partner with TOPS for Contract Manufacturing?

A long-term manufacturing relationship needs visible responsibilities and evidence. These are the buyer concerns we work through when defining the program.

Customer concernTOPS responseEvidence to agree
Too many suppliersCoordinate CNC, 鋳造, sheet metal and molding through one supplier relationship.A defined part list, scope of supply and named contact for the program.
Difficult-to-machine componentsApply DFM and multi-axis machining to review critical geometry.An agreed manufacturing route and clarified critical features.
Prototype-to-production transitionReview the production method as demand and design maturity change.Prototype and pilot acceptance criteria before repeat production.
Dimensional inconsistencyDefine inspection requirements and production checkpoints.An agreed inspection plan, first-article record and required reports.
Complex materials and finishesCoordinate material sourcing and secondary processing.Approved grade, 状態, coating and final-condition requirements.
Overseas communicationIdentify a contact for technical and commercial coordination.Clear drawing revision, milestones and order-status communication points.
Repeated purchase ordersManufacture against controlled, approved specifications.Part numbers, 改訂, release quantities and change approvals.

Evidence that belongs to your business

OEM Contract Manufacturing Program Examples

See how an OEM component program can connect the drawing, manufacturing route, inspection requirements and repeat-order plan.

These examples explain how a manufacturing program can be structured. They illustrate relevant component families and are not claims of completed customer projects or verified production results.
Precision Aluminum Housing illustrative component family

PROGRAM EXAMPLE 1

Precision Aluminum Housing

An aluminum housing program connects material selection, machined interfaces, finishing and the inspection plan before repeat releases.

MANUFACTURING ROUTE EXAMPLE
材料 / 学年
Drawing-specified aluminum grade
量 / 年間生産量
Release quantity and annual forecast
Critical tolerance
Agreed critical CNC features
仕上げ
Approved coating / 表面状態
検査
FAI and dimensional checks as specified
Production sequence
Drawing review → CNC machining → finishing → dimensional verification
What to define for this program →

Define the aluminum grade, release quantity, critical interfaces, 仕上げ, 検査方法, drawing revision and repeat-order requirements.

Cast Component with Secondary CNC Machining illustrative component family

PROGRAM EXAMPLE 2

Cast Component with Secondary CNC Machining

A cast component program connects tooling approval, the casting route and secondary machining of critical interfaces.

MANUFACTURING ROUTE EXAMPLE
材料 / 学年
Approved casting alloy
量 / 年間生産量
Volume reviewed against tooling cost
Critical tolerance
Machined and cast features defined separately
仕上げ
Per approved specification
検査
Agreed casting and final dimensional checks
Production sequence
Tooling approval → casting → secondary CNC machining → final inspection
What to define for this program →

Define alloy, tooling responsibility, casting route, machining datums, acceptance criteria, annual quantity and final finish.

Repeat Production of Precision Components illustrative component family

PROGRAM EXAMPLE 3

Repeat Production of Precision Components

A repeat component program connects the approved drawing revision, batch quantities and designated inspection checkpoints.

MANUFACTURING ROUTE EXAMPLE
材料 / 学年
Drawing-specified material grade
量 / 年間生産量
Per release and annual demand
Critical tolerance
Agreed critical drawing dimensions
仕上げ
Per approved specification
検査
Batch-related checks and records
Production sequence
Approved revision → production plan → designated checks → batch release
What to define for this program →

Define material, release quantities, 年間需要, 重要な寸法, approved revision, inspection checkpoints and packaging.

From requirements to a released batch

How Our Contract Manufacturing Process Works

  1. Submit Your RFQ

    Share drawings, part numbers and revisions, 材料, annual quantities, tolerances and quality requirements.

  2. エンジニアリング & DFM Review

    Evaluate manufacturability, プロセス, tooling needs and the technical and commercial scope.

  3. 引用 & Approval

    Confirm pricing, estimated lead times, 仕様, documentation and production responsibilities.

  4. Production Preparation

    Arrange approved materials, ツーリング, 備品, inspection requirements and the production plan.

  5. 製造業 & 検査

    Produce the components and verify the agreed critical characteristics using the approved plan.

  6. 包装 & 配達

    Complete final acceptance, part identification, packaging and the agreed shipping arrangements.

Discuss Your Manufacturing Project →

Direct answers for sourcing teams

Frequently Asked Questions About Contract Manufacturing

What is contract manufacturing?

Contract manufacturing is an arrangement in which an OEM outsources defined production responsibilities to a manufacturing partner. The scope can include material procurement, ツーリング, component production, 検査, secondary processing and delivery. A useful manufacturing agreement identifies the approved drawings, quality responsibilities, deliverables and change-approval process. TOPS focuses on custom-engineered metal and plastic components rather than making an undefined promise to supply every type of finished product.

What contract manufacturing services does TOPS Precision offer?

TOPS Precision provides CNC machining, ダイカスト, sheet metal fabrication and plastic injection molding in-house. Contract manufacturing support includes engineering and DFM review, material procurement, production preparation, inspection planning and coordination of repeat orders and delivery. The quotation identifies the agreed scope, required documentation, secondary operations and any outside processing so responsibility is clear before production starts.

What is the difference between contract manufacturing and precision manufacturing?

Precision manufacturing describes making components to defined dimensional, material and surface requirements. Contract manufacturing describes the wider outsourcing relationship: who procures materials, prepares tooling, controls revisions, manufactures, verifies quality and fulfils recurring orders. TOPS’s precision manufacturing page explains technical processes and tolerances; this page explains how those capabilities are coordinated for an OEM production program.

Does TOPS support OEM and custom component manufacturing?

はい. TOPS supports custom metal and plastic components manufactured to customer-approved drawings and specifications. Send the intended application, 図面の修正, material grade, critical dimensions and expected demand. Engineering review establishes the manufacturing route and acceptance requirements; the quotation then defines tooling, 生産, inspection and delivery responsibilities. Product design ownership, confidentiality and tooling ownership should be agreed where relevant rather than assumed.

Can TOPS manage both metal and plastic component production?

はい. TOPS combines in-house CNC machining, ダイカスト, sheet metal fabrication and injection molding for metal and plastic component programs. Each part is assessed separately for material behavior, ツーリング, geometry and inspection. Where a project includes several part numbers, provide a part list with quantities and drawing revisions so the scope and dependencies can be reviewed together. Secondary processing responsibilities are identified in the quotation.

Can you handle prototype and repeat production orders?

はい. TOPS supports prototypes, pilot or low-volume batches and repeat production. Early builds establish fit, function and critical requirements. Pilot production reviews the proposed manufacturing route and inspection checkpoints. Subsequent orders follow the approved specification and revision. Tooling is considered when geometry and demand justify its cost; not every lower-volume component needs a casting or injection mold.

What quality control procedures are used for contract manufacturing?

TOPS uses material verification, 最初の商品検査, in-process measurement and final dimensional inspection according to the project’s agreed quality requirements. 三次元測定機, optical measurement and suitable gauges are selected around the characteristics being checked. 材料証明書, ファイ, 寸法レポート, RoHS documentation and CoC are specified during quotation. ISO 9001:2015 concerns quality management; it does not automatically establish a particular tolerance or a specialist industry approval.

How does TOPS handle drawing revisions and engineering changes?

The current approved drawing and revision are identified before manufacture. A proposed change is reviewed for effects on material, ツーリング, features, 検査, work in progress, cost and schedule. The revised scope should be approved before changed parts are produced. Buyers should state the effective order or batch and how existing stock or work in progress is to be handled; those decisions are not assumed from a new drawing alone.

Can TOPS coordinate finishing, inspection and international shipping?

はい. 仕上げ, 検査, packaging and international delivery can be included in the agreed manufacturing scope. Specify coating type and thickness, マスクされた領域, final-condition inspection, 梱包, documentation and shipping destination. Any outside secondary processing should be identified with the manufacturing responsibilities. Incoterms, freight arrangements and delivery schedules are confirmed in the quotation or order; the page does not promise a fixed lead time or guaranteed delivery for every project.

What information should I provide for a contract manufacturing quotation?

Provide your 2D drawings and 3D models, part numbers and revisions, material grades, quantity per release and expected annual demand, 公差, 終わります, quality documents, target delivery dates and destination. For a multi-part program, include a BOM or part list and identify assembly or packaging requirements. Note confidentiality or tooling-ownership requirements early. ステップ, STP, IGES, PDF, DWG and DXF are suitable starting formats for review.

Start with the program, not just the part

Request an OEM Contract Manufacturing Quote

Share the drawing and the production context. We will review the process, 材料, quality requirements and responsibilities needed to quote your OEM program.

  • 2D drawings and 3D CAD files
  • Part numbers, BOM or part list and drawing revisions
  • Material grades, finishes and critical tolerances
  • Quantity per release and estimated annual demand
  • 検査, documentation and traceability requirements
  • Target dates, shipping country and delivery location

ステップ | STP | IGES | PDF | dwg | DXF

Discuss confidentiality early.
State any NDA, drawing-handling or tooling-ownership requirements before sending restricted project information.

Prefer email?
info@tops-precision.com

    OEM プログラムについて教えてください

    ステップ, STP, IGES, PDF, DWG または DXF; まで 10 MB. 複数のパーツまたは大きなファイルの場合, ファイル転送オプションについてはお問い合わせください.

    図面と問い合わせの詳細は、プロジェクトのレビューと回答に使用されます. 機密情報を送信する前に、NDA または制限付きファイルの要件について話し合ってください。.

    Let's Start A New Project Today

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      ステップ, STP, IGES, PDF, DWG または DXF; まで 10 MB.

      お客様の詳細とファイルは、お客様のお問い合わせを確認し、回答するために使用されます。. 機密情報を送信する前に、NDA 要件について話し合ってください。.

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