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Jiangsu Shengrong is a professional manufacturer and supplier of cast iron pulleys (grooved wheels), roller sprockets, cast iron pulleys, shaft collars and couplings, welding hubs, tapered bushings and other power transmission products. Product quality meets ISO, DIN, ANSI, AGMA, SAE and JIS standards
Name: Cast iron pulleys
Material: Gray cast iron HT250/GG25
Standard/tollerance: EN1561-2011
Size and weight: OEM by drawing/40 days from mold to finished products
Application:Oil mill/Sugar mill/Textile mill/Crusher plant/Dairy plant/Rice mill/Paper mill/Ball mill/Food machines/Gases industry/Gining mills
Advantages of Shengrong Casting Gray Cast Iron Pulley:
Applications of Cast Iron Pulley
Cast iron pulleys produced by Shengrong are used in many industrial fields due to their high wear resistance, high corrosion resistance, good shock absorption performance and low cost.
1. Industrial machinery
Transmission system: used for power transmission of machine tools, textile machinery, packaging machinery and other equipment, connected to motors or other power sources through belts.
Heavy equipment: such as high-load transmission parts in mining machinery and metallurgical equipment.
2. Agricultural machinery
Tractors and harvesters: used to drive agricultural tools (such as threshers, irrigation pumps, etc.) to adapt to complex outdoor environments.
Agricultural processing equipment: such as power transmission of rice mills and feed crushers.
3. Automobiles and transportation
Engine accessory drive: used to drive generators, water pumps, air conditioning compressors, etc. in some commercial vehicles or old models (modern cars mostly use lighter alloy wheels).
Rail transportation: transmission system of some locomotives or auxiliary equipment.
4. Food and beverage processing
Production line equipment: such as conveyor belts, mixers, etc., need to choose cast iron wheels with good surface treatment to avoid contamination (must meet hygiene standards).
5. Energy and Electricity
Generators: Power transmission of auxiliary equipment, such as cooling fans and water pumps.
Wind power generation: Transmission components in some traditional models.
7. Construction and Engineering Machinery
Concrete mixers, cranes: withstand high torque and vibration environments.
8. Papermaking and Printing Machinery
Drum drive: When smooth transmission is required, the shock-absorbing properties of cast iron are utilized.
9. Ships and Port Machinery
Deck machinery: Transmission systems such as winches and cargo hold equipment are resistant to seawater corrosion (special coatings are required).
10. Household appliances and small equipment
Old-fashioned washing machines, industrial fans: low-cost and durable transmission solutions.
Technical Capability
Advantages of Shengrong Casting Gray Cast Iron Pulley:
Applications of Cast Iron Pulley
Cast iron pulleys produced by Shengrong are used in many industrial fields due to their high wear resistance, high corrosion resistance, good shock absorption performance and low cost.
1. Industrial machinery
Transmission system: used for power transmission of machine tools, textile machinery, packaging machinery and other equipment, connected to motors or other power sources through belts.
Heavy equipment: such as high-load transmission parts in mining machinery and metallurgical equipment.
2. Agricultural machinery
Tractors and harvesters: used to drive agricultural tools (such as threshers, irrigation pumps, etc.) to adapt to complex outdoor environments.
Agricultural processing equipment: such as power transmission of rice mills and feed crushers.
3. Automobiles and transportation
Engine accessory drive: used to drive generators, water pumps, air conditioning compressors, etc. in some commercial vehicles or old models (modern cars mostly use lighter alloy wheels).
Rail transportation: transmission system of some locomotives or auxiliary equipment.
4. Food and beverage processing
Production line equipment: such as conveyor belts, mixers, etc., need to choose cast iron wheels with good surface treatment to avoid contamination (must meet hygiene standards).
5. Energy and Electricity
Generators: Power transmission of auxiliary equipment, such as cooling fans and water pumps.
Wind power generation: Transmission components in some traditional models.
7. Construction and Engineering Machinery
Concrete mixers, cranes: withstand high torque and vibration environments.
8. Papermaking and Printing Machinery
Drum drive: When smooth transmission is required, the shock-absorbing properties of cast iron are utilized.
9. Ships and Port Machinery
Deck machinery: Transmission systems such as winches and cargo hold equipment are resistant to seawater corrosion (special coatings are required).
10. Household appliances and small equipment
Old-fashioned washing machines, industrial fans: low-cost and durable transmission solutions.
Technical Capability
The production process of Jiangsu Shengrong cast iron pulley is as follows
1. Design and mold preparation
Drawing design: Design the size, groove type (such as V-type, multi-wedge groove, etc.) and structure of the pulley according to the use requirements (such as transmission power, speed, installation size, etc.).
Mold making: Make wooden molds, metal molds or lost foam molds for sand casting (selected according to the casting process), or prepare metal molds for die casting.
2. Casting process
(1) Melting
Raw material preparation: Use gray cast iron (HT150, HT200, etc.) or ductile iron (QT500-7, etc.), and mix scrap steel, pig iron, and recycled materials in proportion.
Melting: Melt into molten iron in a cupola or electric furnace and control the temperature (about 1400-1500℃).
Composition adjustment: Add alloy elements (such as carbon, silicon, manganese)
(2) Pouring
Sand casting:
Molding: Use a wooden mold to make a cavity in a sand box (wet sand, resin sand, etc.).
Combining the boxes: Align the upper and lower sand boxes to form a complete cavity.
Pouring: Pour molten iron into the cavity, paying attention to controlling the flow rate to avoid air holes.
Other processes: Lost foam casting can be used for small batches, and metal mold casting may be used for large batches.
(3) Cooling and cleaning
After cooling, unpack the boxes, remove the pouring head, flash, burrs, and sandblast or shot blast to clean the surface sand.
3. Machining
Turning: Use a lathe to process the inner hole, end face and outer circle of the wheel hub to ensure dimensional accuracy and concentricity.
Groove processing: Use a milling machine or CNC lathe to process belt grooves (such as V-grooves, multi-wedge grooves), ensuring that the groove angle and depth meet the requirements.
Drilling: Process mounting holes or keyways to ensure the accuracy of matching with the shaft.
4. Heat treatment (optional)
Annealing: Eliminate casting stress and improve cutting performance (especially for ductile iron).
Surface quenching: Pulleys with high wear resistance requirements may have their groove surfaces quenched.
5. Dynamic balancing test (key step)
The pulleys used for high-speed transmission need to be dynamically balanced to eliminate the imbalance by adding or removing counterweights or removing weights to avoid vibration during operation.
6. Surface treatment and rust prevention
Spraying/plating: spray anti-rust paint, galvanizing or phosphating to improve corrosion resistance.
Oiling: Anti-rust oil can be applied for short-term rust prevention.
7. Quality inspection
Dimension detection: Use calipers, three-coordinate measuring instruments, etc. to check key dimensions.
Appearance inspection: No defects such as cracks, pores, and sand holes.
8. Packaging and warehousing
Packaging according to customer requirements (such as wooden boxes, pallets or moisture-proof films), marking specifications and models, and warehousing for shipment.
Drawing design: Design the size, groove type (such as V-type, multi-wedge groove, etc.) and structure of the pulley according to the use requirements (such as transmission power, speed, installation size, etc.).
Mold making: Make wooden molds, metal molds or lost foam molds for sand casting (selected according to the casting process), or prepare metal molds for die casting.
1: Melting
Use gray cast iron, scrap steel, pig iron, and recycled materials in proportion. Melt into molten iron in an electric furnace and control the temperature (about 1400-1500℃). Add alloy elements (such as carbon, silicon, manganese)
2: Modeling: Use a wooden mold to make a cavity in a sand box (wet sand, resin sand, etc.).
Merge: Align the upper and lower sand boxes to form a complete cavity.
Pouring: Pour molten iron into the cavity, pay attention to controlling the flow rate to avoid pores.
3After cooling, unpack the box, remove the pouring head, flash, burrs, and sandblast or shot blast to clean the surface sand.
Turning: Use a lathe to process the inner hole, end face and outer circle of the wheel hub to ensure dimensional accuracy and concentricity.
Groove processing: Use a milling machine or CNC lathe to process belt grooves (such as V-grooves, multi-wedge grooves) to ensure that the groove angle and depth meet the requirements.
Drilling: Process the mounting hole or keyway to ensure the accuracy of the shaft.
Dimension inspection: Check key dimensions with calipers, coordinate measuring machines, etc.
Appearance inspection: No defects such as cracks, pores, sand holes, etc.
Performance testing: Sampling for hardness testing, static balance/dynamic balance verification.
1: Advanced technology and equipment standards
Advanced technology: Sand casting, precision casting, and lost foam casting process. Casting sizes according to customer requirements, weights ranging from 0.5kg to 10,000kg
Automation equipment: Equipped with automated production lines, intelligent melting furnaces (medium frequency/high frequency induction furnaces),
Inspection equipment: Chemical composition/spectrometer and mechanical property inspection equipment, three-coordinate measuring machine (CMM), X-ray flaw detector, spectrometer, ultrasonic testing and other high-end quality inspection methods.
2:Quality management system
ISO 9001 (quality management system)
IATF 16949 (automotive industry quality management system, such as automotive parts)
ASTM/EN/JIS and other international material standards.
3:Customization capability
Customized production according to customer drawings, customers only need to pay half of the mold fee to develop new castings. The mold time is short, only 20 days, and the casting time only 10 days. Machining 10 days.
Free express sample to customers, mass production after customer samples are confirmed to be fully qualified. Our company does not require customers to place a minimum order quantity, satisfying customers with a variety of choices
4:Competitive prices
Our company’s prices are very competitive in the industry, and the specific price depends on the casting drawing and the customer’s order quantity. Welcome to inquire
Carbon, silicon, manganese, sulfur, phosphorus, chromium, nickel, copper and other elements
Tensile strength, yield strength, elongation, hardness, impact strength
Three-coordinate inspection, non-destructive testing, pressure testing, etc.
Every parts we will use anti-rust oil packing or primer, keep every parts in good condition after long time shipping.For small parts, we use wood box pallet packing.For bigger parts with pallet packing
Jiangsu Shengrong High end Equipment Manufacturing Industry Co., Ltd is a professional iron casting foundry about 26,000 square meters, Investment of 80 million yuan,include intermediate frequency furnace, new east Seoul horizontal line, cast star horizontal line, micro crystal automatic casting machine, 40T mixer and 20T mixer, core-making machine, shot blasting machine, machining center, inclined rail lathe, slot machine, vertical lathe, flat rail lathe and other equipment.Testing equipment:spectrometer, tensile testing machine, hardness tester, etc., and supporting chemical testing laboratories. Mainly engaged in: mechanical parts, auto parts, industrial pump parts, bearings and transmission parts manufacturing. Company’s main business: QT450-12, 500-7, 600-3 ball mill castings and HT250, HT300 gray iron castings and cast steel, stainless steel and other business, with the increase of business volume, the production is not only to meet the main business, while the product after the process of product processing business development, so that enterprises diversified production. Now the company has more than 100 employees, including a professional management team and new product development.
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