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Double Suction Pump Body: Leesh Sand Casting Global Delivery

Leesh Holdings: Your Source for Superior Double Suction Pump Bodies

Leesh Holdings Sand Casting Foundry, as highlighted on [https://chinafoundrygroup.com/sand – casting – service/](https://chinafoundrygroup.com/sand – casting – service/), is a prime manufacturer of Double Suction Pump Bodies. Their expertise in sand casting allows for the production of high – quality pump bodies tailored to various industrial needs.

Diverse Material Options

ASTM A395 60 – 40 – 18: This ductile iron grade is a staple choice for double suction pump bodies. It offers an optimal blend of strength, with a minimum tensile strength of 60 ksi, yield strength of 40 ksi, and 18% elongation. This makes it capable of withstanding the internal pressures and mechanical stresses generated during pump operation. It is cost – effective and provides good shock absorption, making it suitable for a wide range of applications.
Duplex Stainless Steel:
- ASTM A890 3A, ASTM A890 1B, ASTM A890 5A: Duplex stainless steels are engineered to combine the high strength of ferritic stainless steels with the excellent corrosion resistance of austenitic stainless steels. For double suction pump bodies, these grades are ideal when the pump will be handling aggressive fluids, such as in chemical processing plants or offshore applications where seawater is present.
Austenitic Stainless Steel:
- ASTM A743 CF – 8: Known for its good weldability and corrosion resistance in mildly corrosive environments, ASTM A743 CF – 8 is a popular option. Avesta 654 SMO, on the other hand, offers enhanced corrosion resistance, particularly in chloride – rich conditions. This makes it suitable for applications where the pump body needs to endure highly corrosive media.
Martensitic Stainless Steel:
- ASTM A747 CB7Cu – 2: Martensitic stainless steel like ASTM A747 CB7Cu – 2 is prized for its high hardness and strength. It can be heat – treated to achieve specific mechanical properties, making it perfect for double suction pump body applications where wear resistance is a critical factor.
Ferritic Stainless Steel:
- ASTM A743 CC50 (mod): Ferritic stainless steels offer a cost – effective solution with decent corrosion resistance. They are well – suited for applications where the corrosive environment is not overly severe, providing a balance between performance and cost.
Other Materials:
- Cast Iron: ASTM A48 CL35 B and High chromium cast iron ASTM A532 IIIA are favored for their high wear resistance. They are suitable for pump applications where the fluid being pumped contains abrasive particles.
- Ductile Iron: In addition to ASTM A395 60 – 40 – 18, ductile iron provides good shock – absorbing capabilities, making it a reliable choice for pump bodies that may experience sudden impacts or vibrations.
- Carbon Steel: ASTM A216 WCB is a common carbon steel grade used when cost – effectiveness and moderate strength are the primary requirements.
- Titanium Alloy: Titanium alloys offer excellent corrosion resistance and a high strength – to – weight ratio. Although more expensive, they are used in specialized, high – performance double suction pump applications.

Quality Assurance and Capabilities

Leesh Holdings ensures that every double suction pump body is manufactured to the highest standards. Their sand casting process, as detailed on the China Foundry Group website, incorporates precision casting techniques and strict quality control measures. Whether you require a small – batch production for a specialized project or large – scale production for industrial use, Leesh Holdings has the capabilities to deliver double suction pump bodies made from the most appropriate material to meet your exact specifications.

Manufacturing Method	Sand Casting(Resin Sand, Pre-Coated Sand, Clay Sand, Water glass sand, Green Sand,lost foam )
Material Standard	GB, ANSI, BS, DIN, JIS, ASTM, ASME, AISI, etc carbon steel, low carbon steel, middle carbon steel, G35, G45, WCB, WCA, WCC, ISO 340-550, etc. Alloy Carbon steel: G25CrMo4, Heat Resistant Steel, etc. Stainless Steel: SUS 304, 304L, 316, 316L, CF8, CF8M, G-X7CrNiNb1189, etc. AS2074 or according to customer specific requirement. Ductile Iron:A536-Gr.60-40-18,GGG40,GGG50,FCD40,FCD50,Gr370-17,Gr420-12,etc Grey Iron:A48-No.20,25,30,GG10,GG15,GG20,FC10,FC15,FC20,Grade 150,180,220,FGL150,FGL200,FGL250,etc
Weight Range	1 kg to 100 Tons
General Casting Tolerance	CT8-CT12
Design Software	UG, Pro-E, Inventor
Dwg Format	STP, STEP, IGS,STP,X_T ,DXF,DWG , Pro/E, PDF, SLDPRT
Mould Manufacturing	Yes
Casting Stimulation	Yes
Ultimate machining tolerance	0.005mm
Quality Control	RT,UT,MT,PT,CMM,SCAN,Chemical and Mechanical Property Testing,Spectrometer,etc
Finish Roughness	Ra12.5-Ra25 according to customer requirement
Logo/ID	Silk-screening, Laser Marking, Engrave,Painting
Heat Treatment	Normalization, Annealing, Quenching and Tempering, Case Hardening, Nitriding, Carbon Nitriding, Induction Quenching,etc
Surface Treatment	Shot/sand blast, Polishing, Surface Passivation, Painting , Anodizing,Powder coating, ED- Coating, Chrome Plating, zinc-plate, Dacromat coating, Finish Painting,hot-dip galvanizing, etc

Common FAQs About Leesh Sand Casting

1. What is sand casting?

Sand casting is a casting method that uses sand as the molding material to produce castings. It is widely used due to its advantages such as readily available and low-cost materials, simple equipment, easy operation, and no restrictions on casting alloy types, shapes, sizes, or production scales.

2. What materials can Leesh supply for sand casting?

Leesh provides various materials including Carbon Steel, Alloy Steel, Stainless Steel, Grey Iron, and Ductile Iron. These materials comply with international and national standards such as ASTM, SAE, AISI, ACI, DIN, EN, ISO, and GB.

3. What is the weight range of castings Leesh can produce?

Cast Steel: 50Kg – 25,000Kg
Cast Iron: 0.1Kg – 3,000Kg

4. What sand casting processes does Leesh adopt?

For Cast Steel: Water glass sand, resin sand, coated resin sand (Hot-Box & Shell Molding)
For Cast Iron: Resin sand, green sand

5. What are the key technical specifications of Leesh’s Green sand casting?

Dimensional tolerance: CT8–CT12 (per ISO 8062)
Surface roughness: Ra 6.3–25 μm
Max part weight: 0.1 kg – 25,000 kg

6. Which industries does Leesh’s sand casting serve?

Leesh’s sand casting solutions are suitable for diverse industries including construction, machinery, automotive, and energy.

7. Why choose Leesh’s sand casting services?

Cost-effective for both small and large production runs
Compatible with a wide range of metals and alloys
Flexible in design and size customization
Shorter lead times for prototype development and bulk production

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