Shandong Yigexin Machinery Equipment Co., Ltd. is deeply engaged in the R&D and manufacturing of hydraulic components, focusing on providing high-performance, highly reliable and long-service-life hydraulic cylinders for engineering machinery, mining equipment, metallurgical machinery, special vehicles and other industries. Relying on the advantages of Shandong's manufacturing industrial cluster and an experienced technical team, Yigexin hydraulic cylinders are characterized by precision manufacturing, stable durability and strong adaptability, and have become a high-quality supplier of hydraulic power actuators in China.
1. Product Core Positioning
Yigexin hydraulic cylinders are core actuators that efficiently convert hydraulic energy into mechanical energy for linear reciprocating motion. Specially designed for medium and high pressure, heavy load and complex working conditions, they feature strong bearing capacity, stable movement, precise response and reliable sealing. They can perfectly replace similar imported products and meet the strict requirements of equipment for linear power such as pushing, pulling, lifting, lowering and jacking.
2. Product Series and Specifications
2.1 Standard Piston Hydraulic Cylinders (HSG Series)
· Structure: Single-rod double-acting type, mainstream universal cylinder
· Key Parameters
o Bore diameter: Φ40–Φ320mm
o Rod diameter: Φ22–Φ220mm
o Stroke: 100–5000mm (extra-long stroke customizable)
o Rated pressure: 16MPa / 25MPa (high-pressure type up to 31.5MPa)
o Operating temperature: -30℃～120℃
· Mounting types: Front & rear trunnion, clevis, flange, foot mounting, suitable for various equipment interfaces
2.2 Engineering Heavy-duty Special Cylinders
Suitable for excavators, loaders, cranes, road rollers, dump trucks and other construction machinery. Optimized for shock load, dusty environment and continuous operation, with eccentric load resistance, anti-collision, anti-pollution and dust-proof features.
2.3 Multi-stage Telescopic Hydraulic Cylinders
· Stages: 2–5 stages
· Applications: Truck box lifting, crane telescopic booms, aerial work platforms, sanitation equipment. The preferred choice for long stroke and small installation space.
2.4 Metallurgical / Mining Special Cylinders
· Features: High temperature resistance, corrosion resistance, impact resistance, with buffer protection and high-pressure sealing
· Suitability: Steel rolling equipment, mining hydraulic supports, metallurgical machinery, heavy presses
2.5 Non-standard Customized Cylinders
One-to-one development according to customer drawings, working condition parameters and installation dimensions, suitable for special machinery, automated production lines, ships, military industry and other special scenarios.
3. Core Technologies and Quality Advantages
3.1 Selected Materials for Sturdiness and Durability
· Cylinder tube: Made of 45# precision seamless steel pipe / high-strength alloy steel pipe, with inner wall processed by fine boring + rolling technology, roughness up to Ra0.4–0.8μm, high hardness, low friction and resistance to scoring.
· Piston rod: High-quality 40Cr steel, treated with quenching & tempering + high-frequency quenching + hard chrome plating (plating thickness 20–30μm), wear-resistant, corrosion-resistant and impact-resistant, effectively extending seal service life.
· End caps / Pistons: High-quality forged steel / ductile iron, high strength, fatigue resistance, suitable for long-term heavy-duty conditions.
3.2 Premium Sealing System for Zero Leakage
Adopting international brand sealing combinations from NOK, Parker, Trelleborg (piston seals, rod seals, guide rings, wipers, buffer seals):
· Prevent internal and external leakage, anti-aging
· Suitable for high-pressure, high-speed, high and low temperature conditions
· Reduce maintenance frequency, service life increased by more than 30%
3.3 Precision Manufacturing and Strict Quality Control
· Full-process CNC machining, key dimensional accuracy up to IT7–IT8 grade
· 100% pressure test (1.25 times rated pressure), air tightness test, stroke test and buffer test
· Raw material inspection, full dimensional inspection and fatigue life test, factory pass rate 100%
3.4 Performance Highlights
· Strong output force: Thrust range 5kN–3000kN, meeting light-duty → heavy-duty → extra-heavy-duty demands
· Smooth movement: No transmission clearance, no crawling at low speed, no impact at high speed
· Fast response: Sensitive to hydraulic signals, precise action and good synchronization
· Wide adaptability: Compatible with mineral oil, fire-resistant hydraulic oil and other media, adaptable to harsh environments such as dust, humidity, high and low temperature
· Easy maintenance: Modular design, convenient seal replacement and low maintenance cost
4. Typical Application Areas
· Construction machinery: Excavators, loaders, cranes, bulldozers, road rollers, concrete pump trucks
· Mining machinery: Hydraulic supports, crushers, screening equipment, mining dump trucks
· Metallurgical equipment: Steel rolling mills, extruders, forging equipment, continuous casting machines
· Special vehicles: Sanitation trucks, fire trucks, aerial vehicles, heavy-duty transporters
· General machinery: Machine tools, automation lines, presses, agricultural machinery
If you need a more concise version or want to refine it into a product brochure-style short English copy, I can simplify it further for you.
