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| Customization: | Available |
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| Standard: | GB, EN, China GB Code, JIS Code, TEMA, ASME |
| Tolerance: | +/-0.10mm |
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Deep-drawing stainless steel parts are heavily used in the automotive industry because they are resistant to heat and corrosion. By using a particular grade of magnetic steel, stainless steel parts also offer electrical benefits. Stainless steel medical components, using grades 304, 305, and 430, provide benefits to the medical industry as well. No matter the composition or intended use, we produce quality deep-drawn stainless steel parts that are strong, durable, and wear-resistant.
| Materials | Carbon steel(cold rolled steel sheet, galvanized steel sheet or tube), stainless steel, copper, brass, aluminum, etc. |
| Surface treatment | All kinds of surface treatments are available, polishing, zinc plating, nickel plating, chrome plating, powder coating, and phosphate coating. |
| Measurements | According to the customer's design, drawing, or sample. |
| Mold/tooling/die |
1. We make the toolings by ourselves according to the customer's drawing or sample. 2. We send samples to customer to confirm first 3. Single stamping dies can save the cost if the quantities are not large. But the production time is a little slower than the progressive stamping die 4. Progressive die can save production time for large quantities of products, but the die's cost is more expensive than single stamping die. |
| Confirm sample | If the first sample does not satisfy the customer, we will modify the mold until the customer is satisfied. |
| Usage | Auto machinery parts, Funiture hardware, electronic hardware, construction machinery parts, metal processing machinery etc. |
| Sale market | Europe, the Middle East, America, Africa, South America etc. |
| Our Service | We will answer your email or inquiry within 12 hours |
Why choose us?
1. High-skilled and well-trained working team under a good management environment.
2. Quick response and support for any inquiries.
3. Over 10 years of professional manufacturing experience to ensure the high quality of your products.
4. Large and strong production capacity to meet your demand.
5. High-Quality standard and hygienic environment.
6. We have a very strict quality control process:
In coming Quality control (IQC) - All incoming raw materials are checked before used.
In-process quality control (IPQC) - Perform inspections during the manufacturing process.
Final quality control (FQC) - All finished goods are inspected according to our quality standard for
each product.
Outgoing Quality Control (OQC) - Our QC team will 100% full inspection before it goes out for
shipment.
Proper Quarantine procedure - For those products got rejected to pass the quality control, they will
specially marked and dispose of.
7. Good after-sales services
8. Passed ISO 9001 and provide SGS/ RoHS certification if needed.
Product Range
* Stamping parts
* Laser-cutting parts
* Automobile parts
* High-precision sheet metal parts
* Precision progressive die
* Kitchen microchip
* Food machinery
* Welding parts
High Production Speed: Once the tooling (die and punch) is set up, the process is extremely fast, making it ideal for high-volume production runs.
Material Efficiency: The process generates very little scrap compared to machining, as the part is formed, not cut away from a larger block.
Repeatability and Precision: Modern deep drawing presses offer excellent dimensional control, ensuring that thousands or millions of parts are virtually identical with tight tolerances.
Strength and Durability: The cold working of the material during the drawing process increases its tensile strength and hardness. The seamless nature of the part also eliminates weak points found in welded assemblies.
Cost-Effectiveness for Large Volumes: While the initial tooling investment can be high, the low per-unit cost makes it very economical for mass production.
Other specifications
* Advanced CMM measuring and testing equipment
* Advanced CAD, CAM and CAE technology, AutoCAD, Pro-E, Solid work 2001, CAXA, UG
* In-house tooling design and manufacturing
* Customized designs and specifications are accepted
* Meet RoHS compliance
1Q: Are you trading company or manufacturer?
A: We are factory, so we can provide competitive price for you.
2Q: What kind of service can you provide?
A: Our company (Runze) can provide OEM sheet metal fabrication, CNC machining and manufacturing service.
3Q: What's kinds of information you need for a quote?
A: In order to quote for you earlier, please provide us the following information together with your inquiry.
1. Detailed drawings (STEP, CAD, SOLID Works, PROE, DXF and PDF)
2. Material requirement (SUS, SPCC, SECC, SGCC, Copper, AL, ETC.)
3. Surface treatment (powder coating, sand blasting, planting, polishing, oxidization, brushing, etc.)
4. Quantity (per order/ per month/ annual)
5. Any special demands or requirements, such as packing, labels, delivery, etc.
4Q: What shall we do if we do not have drawings?
A: Please send your sample to our factory, then we can copy or provide you better solutions. Please send us pictures or drafts with dimensions (Thickness, Length, Height, Width), CAD or 3D file will be made for you if placed order.
5Q: What makes you different from others?
A: a. Our Excellent Service
We will submit the quotation in 48 hours if getting detailed information during working days.
b. Our quick manufacturing time
For Normal orders, we will promise to produce within 3 to 4 weeks.
As a factory, we can ensure the delivery time according to the formal contract.
6Q: Is it possible to know how are my products going on without visiting your company?
A: We will offer a detailed production schedule and send weekly reports with photos or videos which show the machining progress.
7Q: Can I have a trial order or samples only for several pieces?
A: As the product is customized and need to be produced, we will charge sample cost, but if the sample is not more expensive, we
will refund the sample cost after you placed mass orders.
8Q: Why there is tooling cost?
A: It's mold cost. Indispensable production process. Only need to pay for first order, and we will bear maintenance cost of mold damage.
9Q: What is your terms of payment?
A: Payment<=1000USD, 100% in advance.
Payment>=1000USD, 40% T/T in advance, balance before shipment.
10Q: What's your after-sale service?
A: If there is quality problem, please provide photos or test report, we will replace defective goods or return funds
1. What is deep drawing?
Deep drawing is a sheet metal forming process where a flat sheet (blank) is radially drawn into a forming die by the mechanical action of a punch. The material is shaped into a hollow, three-dimensional component, often with a depth greater than its diameter. It is a cornerstone of modern mass manufacturing.
2. What are the key components of a deep drawing press?
The essential components are:
Blank Holder / Binder: Applies pressure (blank holder force) to control the flow of the material and prevent wrinkling.
Punch: The tool that pushes the blank into the die, defining the internal shape of the part.
Die: The cavity that the blank is drawn into, defining the external shape.
Blank: The flat piece of sheet metal to be formed.
3. What are the main advantages of deep drawing?
High Production Rates: Suitable for high-volume manufacturing (e.g., automotive, appliances).
Excellent Structural Integrity: Produces parts with good strength-to-weight ratios and consistent wall thickness.
Complex Geometries: Can create seamless, complex shapes (cylindrical, rectangular, multi-curved) in one or several steps.
Good Surface Finish: Utilizes the existing finish of the sheet metal, often requiring no further finishing.
Material Efficiency: Minimal scrap compared to machining processes.
4. What materials can be deep drawn?
A wide variety of ductile metals, including:
Steels: Low-carbon steel (mild steel), stainless steel.
Aluminum Alloys: Popular for lightweight applications.
Copper and Brass: For electrical components and decorative parts.
Nickel Alloys & Titanium: For specialized, high-performance applications (more challenging).
5. What is the difference between "drawing" and "deep drawing"?
Drawing (Shallow Drawing): The depth of the formed part is less than its diameter. It's often a single-stage process.
Deep Drawing: The depth exceeds the diameter (or minimum dimension). It typically requires multiple draws (progressive drawing) with intermediate annealing (heat treatment) to restore the material's ductility and prevent tearing.
6. What common defects occur in deep drawing, and how are they prevented?
Wrinkling (Flange or Wall): Caused by compressive stresses. Prevention: Increased blank holder pressure, using a draw bead, or adjusting lubrication.
Tearing / Necking: Caused by excessive tensile stress, thinning the material too much. Prevention: Reduce punch force, improve lubrication, use a more ductile material, or redesign die/punch radii.
Earing: Wavy edges (ears) on the top of the cup due to the anisotropic (direction-dependent) properties of the sheet metal. Prevention: Using specially processed materials or trimming the final part.
Surface Scratching: Caused by friction between the metal and the tools. Prevention: Application of appropriate drawing lubricants and maintaining a smooth tool surface.
7. What is a "draw bead" and why is it used?
A draw bead is a raised ridge in the blank holder or a matching groove in the die. It introduces controlled restraining force on the blank, regulating material flow into the die cavity. This is crucial for preventing wrinkles in complex, non-symmetrical parts (like automotive panels) without requiring excessively high and damaging blank holder pressure.
8. What industries use deep drawing?
Automotive: Fuel tanks, engine oil pans, transmission cases, body panels, cylinders.
Aerospace: Small housings, hydraulic components.
Consumer Goods: Kitchen sinks, appliance housings (pots, pans), utensils, cans.
Industrial & Electronics: Motor enclosures, compressor housings, connectors, shields.
9. What is the difference between progressive dies and transfer dies in deep drawing?
Progressive Die: The sheet metal strip moves through a single press with multiple stations. At each station, a different operation (pierce, draw, trim) is performed until a finished part exits the last station.
Transfer Die: The partially formed part is mechanically transferred from one separate press (or station within a large press) to the next. This is often used for larger, deeper, or more complex parts where each draw stage requires significant individual attention and potential intermediate annealing.
10. How is deep drawing simulated today?
Finite Element Analysis (FEA) software (like AutoForm, LS-DYNA, PAM-STAMP) is now standard. It allows engineers to simulate material flow, predict defects (tearing, wrinkling), optimize blank shape, and determine forces and lubrication requirements before manufacturing any physical tooling. This drastically reduces development time and cost.
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