Qingdao Sande Technology Co., LTD
| Payment Terms | D/P,T/T,Western Union |
| Supply Ability | 10000PCS/month |
| Delivery Time | 30 days |
| Packaging Details | Wooden case |
| Steel Grade | H13 / 1.2344 / SKD61 |
| Material | Steel |
| Profile | Flat Bar,Forging Piece,etc |
| The Forging Ratio | 3.5 or higher |
| Surface | Rrough Turned,Grinding,etc |
| Surface Treatment | Polishing |
| Raw Materials | alloy steel |
| Heat Treatment | Quenching and Tempering |
| Ultrasonic Test | 100% UT Passed |
| Hardness | HRC 38-42 |
| Brand Name | Qingdao Sande Tech Co.,Ltd |
| Model Number | OEM |
| Certification | ISO, DIN, AISI, ASTM, BS, JIS, etc. |
| Place of Origin | Qingdao, China |
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Product Specification
| Payment Terms | D/P,T/T,Western Union | Supply Ability | 10000PCS/month |
| Delivery Time | 30 days | Packaging Details | Wooden case |
| Steel Grade | H13 / 1.2344 / SKD61 | Material | Steel |
| Profile | Flat Bar,Forging Piece,etc | The Forging Ratio | 3.5 or higher |
| Surface | Rrough Turned,Grinding,etc | Surface Treatment | Polishing |
| Raw Materials | alloy steel | Heat Treatment | Quenching and Tempering |
| Ultrasonic Test | 100% UT Passed | Hardness | HRC 38-42 |
| Brand Name | Qingdao Sande Tech Co.,Ltd | Model Number | OEM |
| Certification | ISO, DIN, AISI, ASTM, BS, JIS, etc. | Place of Origin | Qingdao, China |
| High Light | oem forging auto parts ，oem steel forging parts | ||
Advanced Manufacturing for Demanding Industrial Applications
We specialize in high-precision OEM forging and CNC machining, delivering custom-engineered components that meet the most stringent performance requirements. Our closed-die forging, precision CNC machining, and finishing processes ensure superior strength, dimensional accuracy, and durability—ideal for critical applications in aerospace, automotive, oil & gas, heavy machinery, and defense.
1. Precision Forging Services
Closed-Die (Impression Die) Forging
• Process : Heated billets are pressed into custom dies under extreme pressure, forming near-net shapes with excellent grain flow.
• Benefits :
◦ Higher strength-to-weight ratio vs. casting or machining.
◦ Improved fatigue & impact resistance due to optimized grain structure.
◦ Reduced material waste compared to traditional machining.
• Materials : Carbon steel, alloy steel, stainless steel, titanium, aluminum, brass.
Open-Die Forging
• Process : Used for large, simple shapes (shafts, rings, blocks) where dimensional tolerances allow secondary CNC machining.
• Applications : Heavy industrial components like rolls, cylinders, and large flanges.
Cold & Warm Forging
• Cold Forging : Room-temperature forming for high-strength, tight-tolerance parts (fasteners, gears).
• Warm Forging : Reduced heating for better formability than cold forging, with improved mechanical properties.
2. High-Precision CNC Machining
After forging, parts undergo CNC turning, milling, grinding, and EDM to achieve ultra-tight tolerances (±0.001" or better).
Key CNC Machining Capabilities :
✔ 5-Axis CNC Milling – Complex geometries with high accuracy.
✔ CNC Turning – Precision shafts, bushings, and threaded components.
✔ Grinding (Surface/Cylindrical) – Ultra-fine finishes (Ra 0.2µm or better).
✔ Gear Hobbing & Shaping – High-accuracy gear manufacturing.
✔ EDM (Wire & Sinker) – Intricate contours and hardened materials.
| Parameter | Capability |
|---|---|
| Tolerances | ±0.003" – ±0.010" (forging), ±0.001" (machining) |
| Weight Range | 0.1 kg – 500 kg (closed-die), up to 5,000 kg (open-die) |
| Material Grades | AISI 4140, 4340, 1045, 316L, 17-4PH, Ti-6Al-4V, 6061-T6 |
| Surface Finish | As-forged, machined (Ra 3.2µm), mirror polish (Ra 0.4µm) |
| Heat Treatment | Annealing, quenching, tempering, case hardening, nitriding |
| Certifications | ISO 9001:2015, AS9100 (aerospace), ITAR (defense), PED (pressure |
5. Why Choose Our OEM Forging & CNC Machining Services ?
✅ Superior Metallurgical Properties – Forged parts have better fatigue life than cast/machined alternatives.
✅ Cost-Effective for High-Volume Production – Near-net shapes reduce machining time & material waste.
✅ Full-Service Manufacturing – From design & prototyping to heat treatment & finishing.
✅ Strict Quality Control – CMM inspection, ultrasonic testing, hardness testing for defect-free parts.
Submit your CAD files, drawings, or specifications, and our engineers will provide a custom manufacturing solution with competitive pricing and lead times.
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
2018
Employee Number:
>63
Ecer Certification：
Verified Supplier
Qingdao Sande Technology Co., Ltd. is located in Qingdao. We are specialized in manufacturing forging, CNC machining and various surface treatments. We have over 16 years of experience.We have a professional and experienced team of engineers, advanced production and testing equipment, a powerful qua... Qingdao Sande Technology Co., Ltd. is located in Qingdao. We are specialized in manufacturing forging, CNC machining and various surface treatments. We have over 16 years of experience.We have a professional and experienced team of engineers, advanced production and testing equipment, a powerful qua...
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