This Stainless Steel L-Angle Bracket provides right-angle mounting and structural fixation on automation equipment frames, precision instrument assemblies, and industrial machine structures. Weighing 0.2 kg with overall dimensions of 80 × 50 × 80 mm, it is cast through our in-house Silicone Sol Precision Casting route with solution treatment, then machined and polished on mounting faces and hole positions.
Matech's one-stop approach, covering wax pattern making, silicone sol shell casting, solution heat treatment, CNC machining (hole positions, mounting faces), surface polishing, dimensional and angle inspection, and engineered packing, ensures this L-angle bracket offers excellent 90° angle accuracy, tight hole position tolerances across the bend, and a clean polished surface — performing reliably in precision automation equipment applications.
Custom 304 Stainless Steel L-Bracket | Silicone Sol Investment Casting | Polished Corner Mount for Automation Equipment — Matech
| Specification | Details for This Case | Matech’s Capability / Notes |
| Model / Grade | SUS304 (compliant with JIS H 5302) | We can manufacture products according to customer requirements using 304/316 stainless steel, carbon steel, alloy steel, high-temperature alloy steel, and other materials, and can provide complete material certificates. |
| Casting Equipment | Medium- and high-frequency induction furnaces, silica sol shell-forming production lines, calcining furnaces, pouring stations, etc. | We can produce castings ranging from 0.5 kg to 5,000 kg, with maximum dimensions of 4,000 x 4,000 x 4,000 mm. |
| Unit Weight | 0.2 kg | Available processing weight range: 0.5 kg ~ 5000kg cast components |
| Overall Dimensions | 80x50x80 mm | Maximum machining size approximately 4000x4000x4000 mm; custom dimensions based on drawings |
| Casting Tolerance | CT5-CT6 Grade | Enables the production of complex shapes and precise features, eliminates the need for extensive post-processing, and saves both time and money |
| Machining Tolerance | Orifice chamfer: ±0.5 mm | Backed by 3-, 4-, and 5-axis CNC machining centers, we can achieve tighter tolerance specifications, with a maximum machining accuracy of ±0.005 mm. |
| Surface Roughness | As-cast Ra 3.2 μm / Machined Ra 0.8 μm | Machined surfaces can achieve a minimum surface roughness of Ra 0.8–Ra 1.6 μm (milling/turning) and Ra 0.4–0.8 μm (grinding). |
| Min. Wall Thickness | 3.0 mm | Specialized thin-wall casting technology enables minimum wall thickness down to 0.5 mm depending on part structure |
| Heat Treatment | Solution Treatment | Available processes include normalizing, tempering, quenching, annealing, and high-frequency hardening with full-process temperature control |
| Surface Treatment | Surface Grinding and Polishing | Products can be passivated, pickled, electropolished, electroplated, shot-blasted, sandblasted, or spray-coated as required. |
| Application Industry | Mounting Brackets for Automated Equipment | Widely used in robotics, automotive, medical devices, general machinery, agricultural machinery, and new energy industries |
| Minimum Order Quantity | 500 pcs | Flexible MOQ, supporting prototype development and small-batch trial production |
| Sample Lead Time | 45-50 Working Days (Including New Tooling Development) | Delivery schedule depends on drawing review results; expedited production supported |
| Production Lead Time | 45-50 Working Days | Lead time determined by order quantity and product complexity; negotiable for long-term cooperation |
| Drawing Formats | STEP, IGES, X_T, DWG, PDF | Supports all mainstream 2D/3D engineering drawing formats |
| Customizable | Manufactured according to drawings or samples | Full customization available for material, structure, tolerance, and surface treatment |
| Certification | ROHS,ISO 9001:2015 | Material certificates EN 10204 3.1, dimensional inspection reports, and PPAP Level 3 documents available upon request |
| Packing | Customized PE Foam + Wooden Crate Packaging | Customized anti-corrosion and protective packaging solutions available for precision and critical components |
Customization Options
Every casting project starts with your unique design and requirements. Whether it's iron, steel, or aluminum, we tailor every aspect of the manufacturing process to your exact specifications. Below are the key dimensions you can customize with Matech — your drawing is our only standard.
Our Advantages
Technical Advantages
One-Piece L-Shape Without Welding
The right-angle form and corner gusset are cast as a single piece in the silicone sol mold. No welding means no heat-affected zone, no weld distortion, and no post-weld straightening — the bracket arrives at the 90° angle the mold was made to, and stays there.
DFM Review for Small, Thin-Wall Castings
At 0.2 kg with 3.0 mm minimum wall, this bracket is at the small end of our casting range where fill behavior and cooling rate change quickly. Our review checks for thin-section freezing before fill completes, and adjusts gate and runner design so the corner and hole bosses fill cleanly without cold shuts.
Angle and Hole Position Verified Together
For an L-bracket, checking hole position without checking the angle is incomplete. We measure both the 90° angle between mounting faces and the hole-to-hole position across the bend in the same inspection setup, so the bracket is confirmed to assemble correctly, not just to print.
Material Advantages
304 Grade Verified for Structural and Corrosion Duty
Every incoming SUS 304 batch is spectrometer-checked against JIS H 5302 before melting, with chromium and nickel content confirmed. For a small structural bracket, consistent chemistry is what keeps the cast corner tough enough to hold torque without cracking.
Solution Treatment for Small-Section Stability
Small castings cool quickly and can retain stress from uneven solidification. Solution treatment relieves this stress and homogenizes the structure, which helps the bracket hold its 90° angle after machining and in service.
Material Options for Different Fixing Environments
304 suits general automation and indoor environments. For outdoor, washdown, or chemical exposure, we can cast 316 or other corrosion-resistant grades with the same one-piece L-shape capability.
Service Advantages
Fast Turns on Small Casting Projects
Small brackets like this move through tooling, casting, and machining faster than large housings. Your project manager schedules the L-angle bracket program in shorter cycles, which helps when a fixture or frame design needs a bracket sample quickly.
First Article Covers Angle and Hole Data
Before batch production, we provide a first-article report including the 90° angle measurement, hole position data, surface roughness, and material certification — the data set that confirms an L-bracket will assemble correctly.
Flexible Quantities for Design Iteration
New fixture and frame designs often go through several bracket revisions. We support pilot quantities and flexible MOQ so you can validate fit before committing to production volume. Batch traceability and 24-hour quality response stay in place through the bracket's production life.
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