Home ->
Metal Stamping Services
At SR MFG, our efficient metal stamping management system is capable of supporting monthly production volumes in the millions. We select the optimal processes based on your drawings to ensure the most cost-effective solutions. Whether you need prototypes, small-batch runs, or high-volume production of metal stamped parts across various industries, our expert technical team is ready to assist. In addition to metal stamping, we offer a complete one-stop solution—from consultation and design to production, packaging, and shipping. This end-to-end approach ensures you receive the most convenient and high-quality service possible.
SR MFG’s Stamping Capabilities
SR MFG has more than 20 professional stamping machines with tonnage ranging from 40T to 425T, enabling flexible handling of full-process machining requirements from precision small parts to large structural components. The equipment is compatible with various materials such as steel, stainless steel, and aluminum alloys, with a thickness range up to ≤8mm. Based on real production data from 2024, the general stamping equipment achieves an hourly output of 350-450 pieces and a monthly capacity of up to 99,000 pieces. Additionally, specialized hydraulic presses are available to efficiently handle complex forming tasks like deep drawing. With an extensive equipment scale and verified capacity data, we provide customers with superior delivery reliability assurance.
Comprehensive Equipment Portfolio & Process Adaptability
Proven High Capacity & Delivery Reliability
Stamping Equipment / Capacity
SR MFG ensures reliable metal stamping services by integrating 27 professional stamping presses (40T-425T) with data-driven capacity planning, production scheduling, and rigorous end-to-end process control. Starting with process review and die management, we maintain high yield and on-time delivery through strict production monitoring and quality inspection. Importantly, all our capacity commitments stem from 2024 actual production data, ensuring your planning is grounded in reality. For diverse materials and complex forming requirements, we provide flexible engineering support and rapid response. SR MFG is committed to transforming equipment capabilities into trusted delivery results through systematic management.
Metal Stamping Capacity Benchmark
Our stamping capacity assessment is based on 2024 actual production data statistics. We employ industry-standard capacity analysis methods to comprehensively evaluate annual equipment operating cycles, effective working hours, work order execution, and qualified output—representing actual output capacity rather than theoretical stroke rates. This system accurately reflects real equipment operating status and production efficiency, supporting our capacity commitments with reliable data. Consistent with common manufacturing capacity analysis practices, it ensures our capacity presentation is authentic and credible.
| Equipment Model | Quantity (Units) | Typical Actual Output (Units/Hour) | Daily Capacity (Units/Day, 10 hours) | Monthly Capacity (Units/22 Days) | Applicable Product Category |
|---|---|---|---|---|---|
| QianNiu JH21-160 | 6 | ~350 – 450 | ~3,500 – 4,500 | ~77,000 – 99,000 | Medium/Large Stamping Parts |
| QianNiu JH21-125 | 5 | ~350 – 450 | ~3,500 – 4,500 | ~77,000 – 99,000 | Medium-Thick Plate Stamping Parts |
| QianNiu JH21-80 | 4 | ~350 – 450 | ~3,500 – 4,500 | ~77,000 – 99,000 | General Sheet Metal Stamping |
| Foshan Shengchuan JH21-63 | 3 | ~350 – 450 | ~3,500 – 4,500 | ~77,000 – 99,000 | Small-Medium Stamping Parts |
| Foshan Shengchuan J23-40 | 4 | ~350 – 450 | ~3,500 – 4,500 | ~77,000 – 99,000 | Small-Medium/Inclined Stamping |
| QianNiu JH21-250 | 2 | ~350 – 450 | ~3,500 – 4,500 | ~77,000 – 99,000 | Large/Middle-Thick Stamping Parts |
| Guangduan YA28-425 Four-Column Hydraulic Press | 3 | ~80 – 150 (Cycle-based Deep Forming) | ~800 – 1,500 | ~17,600 – 33,000 | Deep Drawing/Edge Blanking/Complex Forming |
Metal Stamping Overview
Metal stamping is a common manufacturing process that uses a press to shape sheet metal. In this process, a metal blank is placed between matched upper and lower dies. When the press activates, the punch (upper die) descends into the die (lower die), forming the material into the desired geometry. The result is a part with the specified shape, whether simple or complex.
Advantages
- Cost-Effective for Volume: Stamping is highly economical for mass production, offering low per-unit costs once tooling is established.
- High Speed & Repeatability: The process enables rapid production cycles and excellent consistency across large batches.
- Versatility: It can produce a wide range of part geometries, from basic brackets to intricate components.
▪ Limitations
- High Tooling Cost: Custom dies require significant upfront investment, making the process less suitable for low-volume or prototype work.
- Design Inflexibility: Once tooling is fabricated, design changes are difficult and expensive to implement.
- Material Sensitivity: Part quality depends heavily on material consistency; surface imperfections or thickness variations can lead to defects and higher scrap rates.
Types of Metal Stamping
Custom Metal Stamping, Built Around Your Drawings
Based on your drawings and key requirements (part geometry, tolerances, order volume, and lead time), we select the most suitable stamping process and die strategy. Depending on the part’s features, we can combine stamping, bending, and localized forming into a streamlined process flow to reduce handoffs and rework. While maintaining consistent quality, this typically shortens lead time by about 30% and lowers per-piece cost by 10–15% (depending on part complexity and production volume).
Common Types ofStamped Parts
General Tolerance Table for Metal Stamping (Default dimensions without tolerances: ISO 2768-1 m)
Surface Finishing for Metal Stamped Parts
Introduction:
Powder coating is a process that uses powder spraying equipment (commonly known in the industry as an electrostatic powder coating machine) to apply powder coating material onto a metal surface.
Under the effect of static electricity, the powder particles are evenly adsorbed onto the metal surface, forming a dry powder layer. This layer is then baked at high temperature, where it melts, levels, and cures into the final coating with various finishes.
Applicable Materials: Cold-rolled steel, aluminum alloys.
Main Functions: Anti-rust, decorative appearance, wear resistance.
Advantages: Wide color range (full RAL color chart), strong adhesion (pencil hardness ≥ 2H), low VOC emissions (<30 g/L).
Disadvantages: Excessive coating thickness may affect the assembly of certain precision sheet metal parts.
Environmental Compliance: RoHS / REACH compliant.
Material Cost Level: ¥60–80/m² (approximately $8.5–11.5 per m²).
Industry Application Share: 35–40%.
Introduction:
Electroplating is a process that uses electrolysis to deposit a thin layer of metal onto the surface of another metal.
This technique enhances the substrate’s corrosion resistance, wear resistance, electrical conductivity, reflectivity, and overall surface appearance.
Applicable Materials: Carbon steel, stainless steel.
Main Functions: Electrochemical corrosion protection, electrical conductivity.
Advantages: Zinc coating thickness 5–15 μm (salt spray test resistance: 200–500 hours).
Disadvantages: Some processes contain cyanide or hexavalent chromium; wastewater treatment costs are high.
Environmental Compliance: Certain processes do not comply with RoHS requirements.
Material Cost Level: Medium (¥120–180/m², approximately $16.8–25.7 per m²).
Industry Application Share: 35–40%.
Introduction:
Anodizing is primarily used for aluminum and aluminum alloy materials.
Through an electrochemical process, a layer of aluminum oxide (Al₂O₃) film is formed on the surface of aluminum or its alloys.
This oxide layer provides the material with enhanced protection, decorative appearance, insulation, and wear resistance.
Applicable Materials: Aluminum alloys (6061 / 5052).
Main Functions: Wear resistance (HV300–500), electrical insulation, coloring capability.
Advantages: Film thickness 12–25 μm (AA-M12C standard); supports two-tone or gradient coloring.
Disadvantages: Applicable only to aluminum; poor sealing may cause uneven coloring.
Environmental Compliance: RoHS / REACH compliant.
Material Cost Level: Medium-high (¥150–220/m², approximately $21–30 per m²).
Industry Application Share: 10–15%.
Introduction:
E-coating is suitable for materials such as stainless steel and aluminum alloys.
It allows the product to display various colors while maintaining the metallic gloss, while also enhancing surface performance and providing excellent corrosion resistance.
Applicable Applications: Automotive chassis parts, hardware components.
Main Functions: Uniform coating coverage on complex structures (film thickness inside cavities ≥15 μm).
Advantages: Excellent throwing power (100% cavity coverage), outstanding corrosion resistance (salt spray >1000 hours).
Disadvantages: High equipment investment required (electrophoretic tank + ultrafiltration system).
Environmental Compliance: Water-based coating, VOC < 50 g/L.
Material Cost Level: Medium (¥90–150/m², approximately $12–21 per m²).
Industry Application Share: 8–12%.
Introduction:
Mechanical brushing and sandblasting are surface finishing processes commonly used for stainless steel and aluminum alloy materials.
They create a decorative surface texture while maintaining the metallic appearance, and also improve the surface adhesion of subsequent coatings.
Applicable Materials: Stainless steel, aluminum sheets.
Main Functions: Decorative texture (straight or random grain), improved coating adhesion.
Advantages: Surface roughness fluctuation ≤0.2 μm (verified by laser confocal measurement).
Disadvantages: Requires subsequent rust-prevention treatment (e.g., passivation).
Environmental Compliance: Non-polluting.
Material Cost Level: Low (¥30–50/m², approximately $4.2–7 per m²).
Industry Application Share: 5–8%.
Introduction:
Phosphating is a surface treatment process that utilizes the chemical reaction of phosphates to form a protective phosphate film on the surface of metals.
This film enhances the corrosion resistance of the metal surface. The phosphate layer fills microscopic grooves on the metal, creating a smoother surface and forming inorganic salts such as zinc and calcium phosphates.
By adsorbing and inhibiting oxidation, the layer effectively provides anti-rust protection.
Applicable Materials: Steel, cast iron.
Main Functions: Improves coating adhesion and provides short-term corrosion protection.
Advantages: Very low cost, simple process.
Disadvantages: Weak corrosion resistance (standalone salt spray resistance < 50 hours).
Environmental Compliance: Poor (contains phosphates; wastewater treatment required).
Material Cost Level: Low (¥15–30/m², approximately $2–4 per m²).
Industry Application Share: Around 30%.
Introduction:
PVD coating uses physical vapor deposition technology to form a thin film at the atomic and molecular level, providing properties such as high-temperature resistance, low friction, and extended service life.
It produces micron-level coatings with no chemical pollution, making it an environmentally friendly metal surface treatment method — though it comes with relatively high cost.
Applicable Materials: High-speed steel, cemented carbide.
Main Functions: Wear resistance, friction reduction, decorative finish.
Advantages: Extremely high hardness (HV2000–3000), excellent heat resistance (up to 600 °C).
Disadvantages: High equipment investment (over ¥5 million), thin coating layer (<5 μm).
Environmental Compliance: Environmentally friendly (no harmful emissions).
Material Cost Level: High (¥300–800/m², approximately $42–112 per m²).
Industry Application Share: Less than 5%.
Introduction:
Micro-arc oxidation is an advanced version of conventional anodizing.
It uses arc discharge to intensify and activate the anodic reaction, forming a high-quality ceramic reinforcement layer on the surface of alloys such as aluminum, titanium, and magnesium.
The resulting coating provides excellent wear resistance, heat resistance, corrosion resistance, and electrical insulation.
Applicable Materials: Aluminum, magnesium, titanium alloys.
Main Functions: Superior corrosion resistance and wear resistance.
Advantages: Thick coating layer (50–200 μm), high hardness (HV1000–2000).
Disadvantages: Complex process, high cost, applicable only to light metals.
Environmental Compliance: Environmentally friendly (heavy-metal-free, water-based process).
Material Cost Level: High (¥300–800/m², approximately $42–112 per m²).
Industry Application Share: Less than 3%.
Introduction:
Dacromet is a new type of environmentally friendly metal surface coating technology that contains no toxic chemicals and provides excellent corrosion resistance, wear resistance, and fatigue resistance.
The process involves spraying a water-based coating solution containing metal ions such as aluminum, zinc, and chromium onto the surface of metal components.
After spraying, the parts are baked at high temperature to form a dense organic–inorganic composite coating layer.
Applicable Materials: Steel, cast iron.
Main Functions: Heavy-duty corrosion protection (as a replacement for zinc electroplating).
Advantages: Excellent salt spray resistance (up to 1000 hours), no hydrogen embrittlement risk.
Disadvantages: Long process cycle (>1 hour), limited color options (typically silver-gray).
Environmental Compliance: Environmentally friendly (chrome-free, RoHS compliant).
Material Cost Level: Medium-high (¥150–250/m², approximately $21–35 per m²).
Industry Application Share: Less than 8%.
DFM
Metal Stamping Design: The Complete Guide
The success of metal stamping isn’t determined by press tonnage—it’s determined by manufacturability being locked in at the design stage. A drawing that looks perfectly sound can still lead to production problems if it doesn’t account for material behavior, forming paths, die structure, burr direction, positioning references, and inspection methodology. Without this foresight, you’ll face cracking, springback, dimensional drift, uncontrolled burrs, assembly interference, and yield variability during mass production.
Based on real-world engineering experience, this guide walks through the most common design pitfalls, the logic behind process route selection, critical tolerance and deformation control points, and methods for establishing a stable process window from prototype to production. It helps your team minimize rework and cost risks early, transforming drawings into a stable, repeatable, and traceable delivery capability.
Sheet Metal Welding FAQs
Metal Stamping Technical Resources
