Wall Unit Document Holder Bracket Manufacturer Mumbai | SOP Holder Sheet Metal OEM
Unit I Vasai Phata manufactures premium stamped sheet metal components. Engineered with springback compensation, progressive die capabilities, and finished in our automated 7-tank powder-coating facility.
Component USP Summary
Sheet metal wall unit document holder brackets with ±0.2mm A4/A5 slot tolerance, fully deburred internal edges, and 7-tank powder coat finish. OEM batch manufacturer in Vasai for stationery hardware and factory SOP display assemblers.
What Is a Sheet Metal Wall Unit Document Holder Bracket
A wall unit document holder bracket is the fabricated sheet metal structural component that forms the body or frame of a wall-mounted document display system. In factory and industrial environments, the metal bracket functions as the SOP holder - a robust, bent sheet metal frame mounted directly to machinery panels to display standard operating procedures, quality documents, and work orders. The critical fabrication requirements are: slot width held to ±0.2mm so A4 or A5 documents fit cleanly, lip angle formed consistently to prevent document fall-out, all slot interior edges fully deburred to prevent paper damage, and powder coat applied uniformly. Aero manufactures wall unit document holder brackets in CR IS 513 for office hardware OEMs and MS IS 2062 for heavy duty industrial and factory SOP display applications.
B2B Custom Production Timeline
Aero Enterprises shop floor schedule Vasai
DFM Review & CAD
Drawings imported to CNC program, checking sheet gauge, bend allowance, and tonnage calculations.
Laser / Die Stamping
For prototype runs, blanking is completed on our 3000W fiber laser. High volumes move to progressive mechanical dies.
CNC Bending
Formed on press brakes (100T/3100mm) using calculated springback compensation per material batch.
7-Tank Powder Coat
Alkaline degreasing, hot phosphating, and UV-stable polyester top coat at 60-80 microns DFT.
Engineering Data Matrix
| Standard Size / OD Range | A4 slot: 220 to 230mm wide x 310 to 320mm tall. A5 slot: 155 to 160mm wide x 218 to 225mm tall. Custom multi-pocket frame configurations per OEM drawing. |
| base material | CR IS 513 CQ / DQ or MS IS 2062 E250A |
| thickness range | 0.8mm to 1.6mm |
| slot width a4 | 220 to 230mm (A4 portrait / landscape) |
| slot height a4 | 310 to 320mm (A4 portrait standard) |
| slot width a5 | 155 to 160mm (A5 portrait) |
| slot width tolerance | ±0.2mm for document fit |
| lip angle | 15 to 20° forward tilt standard for display. Custom angle per OEM drawing. |
| hole tolerance | ±0.1mm centre-to-centre for alignment |
| edge condition | Fully deburred on all slot interior faces and mounting hole edges. |
| surface finish | Electrostatic powder coat over 7-tank zinc phosphate pretreatment, DFT 60 to 80 microns |
| standard colours | White RAL 9003, Grey RAL 7035, Black RAL 9005. Custom RAL on request. |
| lead time | 5 to 7 working days standard. 8 to 12 days custom slot size or tooling. |
Class Thickness & Mass Reference
Plastic vs Sheet Metal Wall Unit Document Holder
The market is dominated by injection-moulded plastic holders that serve office display well. Sheet metal brackets from Aero are the correct specification in three situations: stationery OEMs building a branded metal-frame product line that positions above the plastic commodity market; factory SOP holder applications where plastic brackets crack under impact, warp under heat, or degrade under cleaning chemicals; and pharmaceutical GMP installations requiring metal-only construction to prevent contamination crevices. For stationery OEM product positioning and industrial SOP display, sheet metal is the differentiating specification.
HSN & Commercial Billing Policy
Fabricated sheet metal wall unit document holder brackets and SOP holder frames fall under HSN Code 7326 (other articles of iron or steel, fabricated). GST rate is 18 percent. For pure sheet metal OEM bracket components invoiced as fabricated hardware parts, HSN 7326 is the standard classification. All Aero Enterprises invoices include correct HSN and GSTIN 27AGCPK5633K1Z9.
Where Sheet Metal Wall Unit Document Holder Brackets Are Used
Standard Grades Capability
CR IS 513 CQ - Standard Office and Stationery Hardware Grade
Primary grade for wall unit document holder brackets in consumer stationery and office hardware. Cold-rolled surface is smooth, scale-free, and dimensionally consistent. Correct for A4 and A5 stationery OEM bracket production.
CR IS 513 DQ - Drawing Quality for Complex Geometry
For wall unit document holder brackets with deep drawn slot profiles, integrated lips, or channel ribs for stiffening. Used where the OEM design requires a single-piece bracket body with multiple formed features.
MS IS 2062 E250A - Heavy Duty Industrial SOP Holder Frame
For factory floor SOP holder frames and industrial document display brackets that must withstand physical impact and heavy binder weight. Used at 1.2 to 1.6mm for structural back plates.
Key Physical Data Points
- A4 slot dimensions: 220 to 230mm wide x 310 to 320mm tall
- A5 slot dimensions: 155 to 160mm wide x 218 to 225mm tall
- Material thickness: 0.8mm to 1.6mm
- Lip angle: 15 to 20° forward tilt standard
- Finish: 7-tank zinc phosphate + 60-80 microns powder coat
Active Delivery & Logistics Coverage
Aero Enterprises delivers mill-certified fabricated items from Unit II Dhumal Nagar across active hubs in Maharashtra and pan-India.
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Material Strength & Engineering Tolerances
Technical Procurement: wall unit folder bracket sheet metal manufacturing
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Technical Q&A
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