Floor-standing enclosures
- Dimensions: width 600–1200 mm × depth 600–800 mm × height 1600–2200 mm, custom sizes available
- Base: 100 / 200 mm channel steel base, leveling via four-corner anchor bolts
- Load capacity: frame uniformly distributed ≤500 kg, heavy components floor-mounted, not door-mounted
- Cabinet joining: removable side panels + joining bolts, rows assembled on site
- Ingress protection: IP54 standard / IP65 optional, front and rear doors with removable side panels
Specifications
The table below covers 80% of factory distribution room cases. Anything outside it we can still build — those are engineered items, quoted separately, with an indicative price the same day.
| Standard sizes (W×D×H) | 600×600×1600 / 800×600×1800 / 800×800×2000 / 1000×800×2000 / 1200×800×2200 mm, custom sizes available |
|---|---|
| Sheet thickness | Door / side panels 1.5 mm, frame uprights 2.0–2.5 mm, mounting rails 2.0 mm |
| Base | 100 mm channel steel base (standard) / 200 mm raised type, four-corner M12 leveling feet |
| Construction | Welded frame + removable side / top panels, front and rear doors |
| Surface treatment | Nine-stage pretreatment + electrostatic powder coating RAL7035; outdoor version hot-dip galvanized + dual coating |
| IP rating | IP54 standard / IP65 optional (GB 4208 / IEC 60529) |
| Cabinet joining | Removable side panels + joining bolts, cumulative row tolerance ≤3 mm per 3 cabinets |
| Cable entry | Cable entry at base level; bottom cover plate drilled to drawing |
| Rated load capacity | Uniformly distributed frame load ≤500 kg (including components and busbars) |
|---|---|
| Door load capacity | Doors are not load-bearing by default; if loads must be mounted on doors, add door braces and calculate separately |
| Lifting | Four top lifting eyes (for shipping); remove after positioning |
| Electrical installation | Uprights with 25 mm modular holes; mounting rails / busbar supports / instrument crossbars per drawing |
| Grounding | Main grounding point M8; braided jumpers between doors and side panels |
| Cooling | Top fan opening / cabinet-top air conditioner opening / louvers, selected per component heat dissipation |
| Single cabinet against wall | Rear door access with ≥600 mm service aisle — the most space-saving layout |
|---|---|
| Back-to-back cabinet rows | Double row back-to-back with service aisle between rows; common in electrical rooms |
| GGD / XL-21 configuration | Custom cutouts and frame per GGD fixed-panel design and XL-21 cabinet form |
| MCC withdrawable frame | Rails and primary / secondary interfaces reserved per drawer cabinet frame |
| Four or more cabinets joined in a row | End cabinets close off both ends of the row; tolerance control plan delivered with drawings |
| Custom build | Widened, deepened, double-layer base, special cutouts machined to drawing |
| Structural standard | GB/T 7251.1 / IEC 61439-1 (mechanical structure section) |
|---|---|
| Load test | 1.25× rated load static test for 10 min; frame deflection ≤2 mm with no permanent deformation |
| Joined-row inspection | After row assembly, front face flatness ≤3 mm per 3 cabinets; inspected row by row |
| Factory inspection (per unit) | Diagonals, door gaps, base level, anchor threads, gasket compression |
| Documents with shipment | Outline drawing, cutout drawing, base anchor bolt layout drawing, material certificate |
Five steps to specify your run
A configuration summary is generated as you go. It travels with your inquiry, saving a round of confirmation.
Build details
Systems have been in service for decades, and the failure points are always the same few: poor busbar contact, water ingress at the door seal, high temperature rise in the correction cabinet, and mis-phased outgoing feeders. The six hard rules below are written for exactly these points — every cabinet can be traced to them.
Level the cabinet first, then install components
Level the four corners of the 100 mm channel steel base with M12 leveling feet, set the cabinet on the base, then weld or bolt it down — the base absorbs floor unevenness so the cabinet frame does not carry the stress.
A cabinet row is one straight line
Beyond a single-cabinet diagonal tolerance of ≤2 mm, front-face flatness after joining is inspected row by row at ≤3 mm per 3 cabinets; even on-site leveling foot adjustment should not exceed this limit.
No hidden gap at the joining line
At the joining position the side panel is fully removable and the joining bolts clamp the cabinets together, leaving no gap for dust between them; when a cabinet is used standalone, refitting the side panel restores full protection.
Safety margin for heavy cabinets
Sampled units undergo a 1.25× rated static load test at the factory and pass only if the frame shows no permanent deformation — this test is what backs up the confidence to set large transformers on the cabinet.
The rule goes into the documentation
Floor-standing cabinet doors do not carry heavy components by default; if a VFD or HMI must be door-mounted, add door support hinges based on weight and calculate separately — this is written into the delivery documents to prevent improvised mounting on site.
Lifting is a transport condition
The four top lifting rings are for shipping and lifting only; remove them after positioning to restore top plate strength — leaving them on long-term collects dust and compromises top sealing.
Photos & enclosure construction
Below are photos taken in our own shop — from the complete unit down to the internal busbars and secondary wiring. Every build detail can be checked item by item.
Image key: 01–05 are shop photos (the numbers match the shot list). The line drawing shows the front elevation of the enclosure; dimensions match the specification table above.
Where these cabinets go
These are the routine applications — we can talk scheme and configuration directly. For the industry view, see the industry pages.
Distribution room cabinet row
The cabinet frame for a low-voltage distribution cabinet row, custom-punched to GGD / GCS configurations.
Control room main cabinet
The housing for a PLC master station plus a full VFD lineup, laid out together with the operator console.
Workshop equipment island
The floor-standing main cabinet for centralized control of production line equipment, with cable trench entry from the bottom.
Pump room / station building
A complete pump control cabinet for floor-standing installation, with IP65 and anti-condensation heaters.
Old distribution room retrofit
Replacement of an aging cabinet row, custom-built to the original cabinet footprint to minimize the power outage window.
Joining for capacity expansion
A phased plan to install two cabinets first and add a third later, with the side panel reserved for the joining position.
Commercial terms
Specification dated September 2026; quotations follow this.
| Drawings & design | Free |
| MOQ | 1 unit (5 or more recommended for production) |
| Production lead time | 15-25 days after drawing approval |
| on-time delivery | 98% |
| Warranty | 12 months |
| Loading port | Ningbo / Shanghai, China |
| Sheet steel | Baosteel / Ansteel cold-rolled sheet (SPCC) / 304 stainless steel |
| Factory visit & dispatch confirmation | Factory visits welcome; finished-cabinet photos and video before dispatch |
| Capacity | 5,800+ units / year |
Documents for your engineering team
Selection manual, outline dimensions and RFQ checklist — for the customer's electrical engineer. All three documents are being organized by product line; download links go live once complete.
Six questions procurement and electrical engineers ask most
Does a wall-mounted cabinet still need a rear door?
Yes. The rear door is the service access point, so leave at least 600 mm of service clearance behind the cabinet when it is installed against a wall. If space is truly tight, choose a true single-side-access wall-mount design with a sealed back — but make that clear at the selection stage.
Does the base need grouting?
In most workshops, leveling the base and anchoring it with expansion bolts is enough. Where vibrating equipment is present (air compressor rooms, pump rooms), we recommend secondary grouting to cast the base and floor as one piece.
Can you build to GGD dimensions?
Yes. GGD (800×600×2200 and other sizes), XL-21, and GCS / MNS frame configurations can all be built to catalog dimensions. Cutouts and frames are made to drawing; complete electrical assemblies are quoted separately as a full cabinet under the ② family.
How do you control the seams when a lineup exceeds 4 sections?
Beyond the ≤2 mm tolerance per single cabinet, we control joining in segments of 3 cabinets at ≤3 mm, and add end cabinets at both ends of the lineup to close it out. For extra-long lineups, we provide per-cabinet numbering and assembly sequence with the drawings.
Can an HMI be mounted on the door?
Small HMIs (under 10 in.) are fine, with a door-stay hinge. For larger screens or complete units mounted on the door, we recommend switching to a recessed mounting rail or an operator console configuration.
How is this different from a Rittal-style cabinet?
Rittal-style cabinets use a 9-fold profile frame and TS structure, which gives higher precision and a higher-end appearance at a higher price. For standard operating conditions, a welded-frame floor-standing cabinet offers better value.
Other cabinet types in the same main circuit
Related products use color-block placeholders for now (product photos not yet complete; they will be replaced together). Internal links will be filled in once live URLs are confirmed.
Send us your cabinet bay dimensions and component list — enclosure proposal back the same day
Send over your cabinet bay dimensions, system drawing, or photos of the existing cabinet, and we will provide a free enclosure proposal and quote · reply within 24 hours · build-to-drawing customization supported. Direct from the source factory, MOQ 1 unit, 15–25 day delivery, 1-year warranty.
ISO 9001:2015 · CE(LVD+EMC) · CQC · IP65
When you write, include: single-line diagram or primary scheme, switch room layout, load list, and component brand requirements. You do not need complete drawings — capacity and cabinet type are enough to start.