Automobile Sealing Gasket
Automobile Sealing Gasket
A Automobile Sealing Gasket is an essential auto part designed to prevent leaks and ensure airtight connections in engines and machinery. Our high-quality Sealing Gasket solutions are engineered for durability, performance, and resistance to extreme conditions, making them ideal for automotive applications. Trust our products to enhance your vehicle’s efficiency and reliability.
A Automobile Sealing Gasket is an essential auto part designed to prevent leaks and ensure airtight connections in engines and machinery. Our high-quality Sealing Gasket solutions are engineered for durability, performance, and resistance to extreme conditions, making them ideal for automotive applications. Trust our products to enhance your vehicle’s efficiency and reliability.
Automobile Sealing Gasket | Leak-Proof, Durable & Heat-Resistant
Our Automobile Sealing Gasket is engineered to deliver airtight sealing for automotive engines and machinery. Designed to prevent fluid and gas leaks even under extreme pressure and high temperatures, this gasket ensures optimal performance and longevity. Manufactured using high-grade materials, it offers exceptional resistance to wear, corrosion, and deformation. Perfect for OEMs and repair applications, our sealing gaskets enhance vehicle reliability, reduce maintenance needs, and improve engine efficiency. Choose our trusted sealing solutions for superior automotive protection.
- More than 60 kinds of materials, more than a dozen alloys, and 70 kinds of numbers.
- Many products can be produced, 3500+ precision casting molds, 1000+ sand casting molds.
- The production accessories can be large or small.
- A single product of 50 kg can be customized.
- Multiple furnaces are available for selection, and single pieces of 50 kg to 850 kg can be produced.
- 20 years of master, rich experience, entered the industry in the 1980s, the industry leader.
- Products are traceable, and each furnace product has a certificate: 3.1 Material Certificate.
- Customers can ask a third-party testing agency to issue a 3.2 certificate.
- Processing fine products can be issued with a processing certificate.
Leierwo’s advantages in casting precision castings in the automotive manufacturing industry
Leierwo, with its ISO 9001 and IATF 16949-certified quality management system, meets the automotive industry’s stringent requirements for consistent performance and quality control. The company’s casting capabilities for materials such as alloy steel and carbon steel make it suitable for manufacturing key parts such as engine mounts, transmission housings, and brake system components. Furthermore, the company possesses CNC machining capabilities, enabling subsequent processing of precision castings to enhance dimensional accuracy and assembly compatibility, further meeting the high-standard processing requirements of automotive components.
Main material selection
Automotive parts require materials with excellent strength, toughness, fatigue resistance, weldability, and a certain degree of corrosion resistance, while also balancing lightweighting and cost-effectiveness. In precision casting, carbon steel and alloy steels are widely used due to their excellent mechanical properties and machinability.
Common Materials:
Carbon Steel Series:
1045: Excellent strength and toughness, suitable for structural parts such as shafts and connecting rods.
4130: A chromium-molybdenum alloy with excellent heat treatment properties, suitable for high-strength, fatigue-resistant components such as suspension systems and drive shafts.
Alloy Steel Series:
42CrMo (AISI 4140): High strength and toughness, suitable for key components such as gears, crankshafts, and camshafts.
35CrMo: Similar to 42CrMo, but with a slightly lower carbon content, suitable for components requiring excellent welding properties.
4140: Widely used in heavy-duty automotive parts such as shafts and chassis components.
Stainless Steel Series (for specific components)
304L/316L: Used in components requiring high corrosion resistance, such as exhaust systems and fuel systems.
Key casting service options
The automotive parts industry must balance mass production capacity, precision requirements, and cost control when choosing casting services. Three service categories each have their own focus:
Sand casting: This is the mainstream choice for automotive parts. Automotive parts are often mass-produced (e.g., engine blocks, chassis brackets, and wheel hubs). These parts have relatively regular shapes (without overly complex internal cavities or curved surfaces). Sand casting enables efficient mass production at a low cost, meeting the automotive industry’s demand for “large-scale standardization.”
Investment casting: This is suitable for critical parts with high precision and complex shapes, such as turbocharger blades and transmission gears. These parts must withstand high temperatures and high pressures, and require extremely high dimensional accuracy (e.g., blade curvature) and surface finish. The near-net-shape capabilities of investment casting reduce subsequent machining and ensure consistent performance.
CNC machining: This serves as a “precision supplement” to casting. Core automotive components (such as crankshafts and connecting rods) require strict dimensional tolerance control (such as shaft diameter tolerance +0.01mm). After sand or investment casting, key surfaces (such as connecting holes and locating grooves) are fine-machined through CNC machining to ensure assembly accuracy and operational stability.
RELATED PRODUCTS
What We Offer
Investment Casting Service
Sand Casting Service
Our Casting Services – Fufilled Across Metal Grades
Start Your Project with Leierwo
1. Submit Your Inquiry
2. Cost Calculation
3. Start Production
4. Arrange Delivery
FAQ
We are a factory with over 20 years of experience in casting and machining. We have rich expertise in this industry. If you come across suppliers claiming to produce castings in a wide range of materials (such as steel, iron, stainless steel, copper, etc.), they are likely trading companies. If you see workshops actively producing parts, you can be assured that we are a genuine manufacturer.
Yes, as long as we receive CAD files or compatible 3D models that can be viewed with software like First Quote or Firstcut browser, we can provide a quotation. Please note that 2D drawings alone are insufficient for manufacturing precision components.
We support 3D CAD models from SolidWorks (.sldprt), ProE (.prt), and other CAD systems, commonly in IGES (.igs), STEP (.stp), ACIS (.sat), or Parasolid (.sat) formats.
We have an internal service system that responds to emails within 4 hours. If your request is urgent, please specify it in your email so we can prioritize your inquiry.
For rapid prototyping:
Silica sol casting: 20–30 days
Sand casting: 7–10 days
For mass production with machining included, the typical lead time is 45–60 days.
More complex parts may require a different delivery schedule.
Yes, we provide samples based on your drawings for you to confirm structure and quality. If the sample does not meet your requirements, we will replace it free of charge until it is qualified.
We accept T/T (bank transfer), Alipay, credit card, etc. Typically, we require a 30% down payment upon order confirmation and the remaining 70% before shipment. For custom parts with complex requirements, additional pricing terms may apply.
We have a comprehensive quality control system that covers every step, from raw material procurement to machining processes and final inspection. For critical components, we strictly follow drawing standards and customer specifications.
All customer data is kept confidential. Only trained engineers are authorized to handle production orders. Third-party inspection or factory audits are welcome, or you may use our in-house quality team for final inspection.
Yes, we guarantee that all materials used are 100% genuine and as specified.
We value long-term cooperation and support our customers’ production needs.
We believe every honest customer is a friend, and we treat our partnerships sincerely—building friendships and strong teams regardless of where our customers come from.




