Rapidsheetfab
Menu
Request a Quote

Custom Sheet Metal Fabrication

Custom Automation Machine Frames

Industrial OEMs building automation equipment need frames that maintain alignment under repeated motion and load. Frames for robotic cells, conveyor modules, and assembly stations require consistent hole patterns, flat mounting surfaces, and welded joints that hold dimension after transport and installation.

Welded steel automation machine frame with mounting surfaces and inserted hardware

Material and Thickness Options

Selection starts with the mechanical demands of the frame. Most automation frames use 2–6 mm material to balance stiffness against weight. Thicker sections apply where base plates carry motors or heavy tooling.

Material Common Grades Thickness Range Typical Frame Use
Carbon Steel SPCC, Q235, Q355 1.5–8 mm Structural uprights and bases
Stainless Steel SUS304, SUS316 1.5–6 mm Cleanroom or wash-down environments
Aluminum 5052, 6061 2–6 mm Lightweight gantries and enclosures
Galvanized Steel SGCC, SECC 1.2–4 mm Indoor frames with moderate corrosion risk

Fabrication Sequence for Frame Assemblies

This sequence keeps the part count low and reduces the chance of tolerance stack-up when multiple pieces assemble into one frame.

  1. Step 1

    Laser Cutting

    Produces flat patterns with ±0.10 mm accuracy on critical hole locations.

  2. Step 2

    CNC Press Brake Forming

    Forms the bends, holding ±0.20–0.30 mm on flange angles.

  3. Step 3

    Hardware Insertion

    Places PEM nuts or studs before welding.

  4. Step 4

    Welding

    TIG or MIG welds join the corners and cross members.

  5. Step 5

    Finishing

    Deburring, grinding weld seams, and applying finish through qualified partners.

Volume Flexibility from Prototype to Repeat Orders

A single prototype frame ships in 5–10 working days once drawings are approved. The same process and tooling then support 10-piece or 50-piece runs without requoting setup charges.

Customers avoid switching suppliers when an initial test unit moves into field deployment or when annual volumes increase.

5–10

Working days for a single prototype frame after drawing approval

10–15

Days lead time for small batch runs

15–25

Days for regular production orders depending on finishing requirements

Documentation Delivered with Each Shipment

Every frame order includes dimensional reports from CMM or 2.5D vision inspection. These documents support incoming quality checks at the customer site and simplify audits for end users in automotive or medical equipment lines.

  • Dimensional Reports

    From CMM or 2.5D vision inspection

  • First-Article Inspection

    Records supplied on request

  • Material Certificates

    Traceability for each order

  • RoHS Statements

    Supporting audit and compliance needs

Projects That Match Our Process Range

Frames for cartesian robots, pick-and-place stations, and modular conveyor sections fit the 2000 × 4000 mm sheet capacity and 230-ton press brake limits. Welded base frames up to 3 m long with M8–M12 tapped inserts are produced regularly.

In Scope

  • Cartesian robot frames
  • Pick-and-place station frames
  • Modular conveyor sections
  • Welded base frames up to 3 m long with M8–M12 tapped inserts
  • Laser-cut flat parts

Outside Typical Scope

  • Projects requiring only laser-cut flat parts
  • Heavy plate beyond 12 mm

Request a Quote for Your Frame Project

Send PDF, DXF, or STEP files with material, finish, and annual quantity. Include any critical datum surfaces or hole patterns that affect alignment. A DFM review and pricing response follows within two business days.

Email Drawings to [email protected]

Or use the inquiry form to send your project details.