Drawing-based empty control cabinet shells for PLC, automation and machinery projects. MSTFAB fabricates the metalwork and coordinates specified finishes; the buyer installs electrical devices, wiring and controls final system testing.
Illustrative empty control cabinet shell. Dimensions and cable entries follow the approved OEM drawing.
A useful control cabinet RFQ defines the component envelope, mounting plate, DIN rail positions, door swing, cable-entry zones, ventilation and finish. MSTFAB supplies drawing-based empty metal shells. The panel builder specifies electrical devices, wiring and final system testing.
| Buyer requirement | Mechanical review | Why it matters |
|---|---|---|
| Component fit | Confirm mounting plate, DIN rail zones and service clearance | Avoids relocating devices after the cabinet is made |
| Cable entry | Release gland plates, cutouts and separation zones | Keeps field wiring accessible and protected |
| Door and thermal interfaces | Define swing, latches, gaskets and buyer-specified cooling openings | Protects assembly fit without implying a tested enclosure rating |
| Repeat orders | Approve the first article and control drawing revisions | Keeps cutouts and hardware positions consistent |
Standard cabinets may work for simple installations. Custom control cabinet enclosure fabrication is more useful when the enclosure must match specific equipment dimensions, thermal requirements, installation conditions, branding or export packaging standards.
Empty floor-standing or wall-mounted PLC cabinet shells with backplates, DIN rail mounting zones and controlled cable entries.
Cabinet shells with separate spaces for control and communication equipment, cable entries, ventilation and service access.
Compact enclosures with cable entries, hinge and lock hardware, ventilation and wall mounting details for field installation.
Formed and welded shells with defined mounting plates, control openings, door access and equipment clearance.
A high-quality cabinet depends on the accuracy and consistency of every fabrication step. Small errors in cutting, bending or welding can create alignment problems during final assembly.
| Process | What it controls | Control cabinet application |
|---|---|---|
| Fiber laser cutting | Panel edges, HMI windows, gland entries and mounting holes | Doors, gland plates, backplates and brackets |
| CNC bending | Body geometry, flanges and door returns | Cabinet bodies, access panels and mounting structures |
| Welding and assembly | Frame squareness, distortion and hardware fit | Reinforced shells and buyer-specified mounting points |
| Finish coordination | Approved coating, masking and color requirements | Qualified partners may complete specified coating |
| Mechanical hardware | Hinges, latches, studs and grounding points | Empty shells ready for buyer-installed electrical components |
Material selection affects cabinet strength, corrosion resistance, weight, appearance and total cost. MSTFAB reviews the installation environment before recommending cold rolled steel, galvanized steel, stainless steel, aluminum or carbon steel.
| Material | Best-fit use | Buyer note |
|---|---|---|
| Cold rolled steel | Indoor control cabinet bodies, doors and mounting plates | Good flatness and appearance with powder coating |
| Galvanized steel / SECC | Indoor cabinets needing improved corrosion protection | Balanced cost and protection for controlled environments |
| Stainless steel 304 / 316 | Outdoor, high-humidity, coastal or corrosive environments | Choose 316 when chloride or marine exposure is a concern |
| Aluminum 5052 / 6061 | Lightweight control cabinet panels and wall-mounted boxes | Reduces transport and installation weight |
| Carbon steel | Heavy-duty frames, support structures and cost-sensitive industrial cabinets | Needs suitable coating or anti-rust treatment |
Before requesting a quote, confirm component sizes, mounting datums, cable access, ventilation openings, door fit and packing protection. These details decide whether the shell accepts the buyer’s final electrical assembly.
| Engineering point | What buyers should confirm | Risk if ignored |
|---|---|---|
| Component envelope | Mounting plate size, DIN rail positions and service clearance | Devices cannot be installed or maintained |
| Thermal interface | Fan, filter, louver and airflow openings specified by the buyer | Cooling hardware or airflow path does not fit |
| Cable entry | Gland plate, power and signal cable zones, bend clearance | Field wiring becomes difficult |
| Mounting and grounding | Studs, brackets, earth points and load requirements | Electrical assemblies need rework |
| Door and panel fit | Hinges, latches, gasket lands and service access | Poor closure or assembly interference |
| Packing protection | Corner, door, coating and loose hardware protection | Damage or missing parts on arrival |
For export buyers, consistent quality is more important than one good sample. The goal is to make every cabinet in the batch fit the drawing, assemble correctly and arrive safely.
| QC stage | Inspection focus | Buyer benefit |
|---|---|---|
| Drawing and DFM review | Hole spacing, bending feasibility, mounting layout, hardware and finish risks | Prevents avoidable production mistakes before cutting metal |
| Material confirmation | Grade, thickness, surface condition and corrosion requirement | Reduces substitution and material mismatch risk |
| First article inspection | Dimensions, mounting position, door fit, hardware and assembly sample | Confirms production route before batch manufacturing |
| In-process checks | Bending angle, welding deformation, coating coverage and visible surfaces | Keeps repeat cabinets consistent across the order |
| Final inspection | Assembly fit, accessories, labels, surface finish and export packaging | Improves arrival quality for overseas buyers |
Clear RFQ information helps the engineering team quote faster, reduce assumptions and provide useful manufacturability feedback before production.
| RFQ item | Recommended detail |
|---|---|
| Drawings | 2D PDF, DXF, DWG and 3D STEP/STP files if available |
| Cabinet structure | Size, rack units, depth, doors, side panels, mounting plate and rail layout |
| Material and thickness | Cold rolled steel, galvanized steel, stainless steel, aluminum or carbon steel |
| Surface finish | Powder coating, RAL color, texture, brushing, anodizing or anti-corrosion coating |
| Application environment | Indoor, data room, industrial floor, outdoor, high humidity or coastal use |
| Protection target | IP/NEMA requirement if applicable, ventilation, fan trays, filters and cable glands |
| Order information | Prototype, pilot batch, annual quantity, destination country and packaging requirement |
Control cabinet enclosures are large, finish-sensitive and easy to deform if packaging is weak. Export packaging should protect cabinet corners, doors, powder coating, mounting rails, hardware and accessories during sea freight or long-distance transportation.
MSTFAB fabricates empty control cabinet bodies, doors, mounting plates, gland plates and specified mechanical hardware from approved drawings. Electrical devices, wiring and final system testing remain with the buyer.
The drawing can specify empty bodies, doors, backplates, DIN rail supports, gland plates, brackets, hinges, latches, studs and grounding points.
Common materials include cold rolled steel, galvanized steel, stainless steel, aluminum and carbon steel. The best material depends on indoor or outdoor use, strength, corrosion resistance, weight and cost requirements.
Yes. Outdoor control cabinet enclosures can be designed with sealing, drainage, ventilation, anti-corrosion coating and weather-resistant structure depending on project requirements.
Send STEP or STP models and PDF, DWG or DXF drawings when available, plus the revision, material, quantity and critical interface notes.
Powder coating and other specified finishes can be coordinated to the approved drawing. Qualified partners may complete coating; masking, color and availability are confirmed per order.
Please send drawings, material, thickness, quantity, finish requirement, application environment and any assembly or packaging requirements.
Upload your drawings, component layout, material, thickness, finish and quantity requirements. Our engineering team will review your project and provide manufacturing feedback.
Attach one file, up to 10 MB (STEP/STP, DXF/DWG, PDF, ZIP, or an image). Include material, quantity, and finish details for an accurate quote.
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