In extreme environments such as high-altitude and frigid regions, high-latitude mining areas, and polar oil exploration, low temperatures can easily cause hydraulic hoses to become brittle and fail to seal, directly affecting the normal operation of engineering machinery and oil equipment, and even causing safety accidents. As a specialized and innovative small and medium-sized enterprise, Letone Technology, with over 20 years of experience in hydraulic hose R&D, has specifically launched a -55℃ ultra-low temperature hydraulic hose to solve the power transmission problem in extreme cold regions, providing a stable and reliable hydraulic pipeline solution for various equipment.
Core Advantages: Excellent Performance Even at -55℃
Letone's -55℃ ultra-low temperature hydraulic hose has undergone multiple rounds of process iteration and extreme environment testing, demonstrating outstanding performance in key indicators such as low-temperature resistance, pressure resistance, and flexibility, far exceeding industry standards. It is suitable for a wide temperature range of -55℃ to +100℃ and can stably transport media such as petroleum-based hydraulic oil.
1. Triple-layer structural design for robust cold-region adaptability
The product employs a customized composite structure, enhancing low-temperature adaptability from the inside out and eliminating the risk of brittleness and delamination:
Inner layer: Utilizing ultra-low temperature resistant special composite rubber, it combines excellent oil resistance with low-temperature elasticity. It does not harden or crack at extreme temperatures of -55℃, effectively resisting hydraulic oil corrosion and ensuring smooth media delivery. Shrinkage is controlled within 10%, far exceeding DIN and SAE standards.
Reinforcing layer: Employing a high-strength steel wire winding process, it features a multi-layer steel wire reinforcement structure depending on the specifications. Working pressure can reach 42MPa, and the burst pressure is 4 times the working pressure. It maintains structural stability under low-temperature and high-pressure conditions, exhibiting excellent pulse performance.
Outer layer: Combined with ultra-low temperature resistant and weather-resistant special composite rubber, it possesses excellent ozone aging resistance and abrasion resistance. No cracks were observed after 1000 hours of ozone aging testing. It maintains good flexibility even at extreme low temperatures, extending the hose's service life to over 5 years (2-year warranty).
2. Key Performance Breakthroughs, Benchmarking International Leading Levels
Letone -55℃ Cryogenic Hydraulic Hose has passed multiple authoritative international and domestic certifications, with performance indicators surpassing similar products from international brands such as Gates (USA) and ContiTech (Germany):
* **Low-Temperature Flexibility:** After being incubated at -55℃ for 4 hours, the bending radius meets industry standard requirements, with some specifications having a bending radius as low as 190mm, suitable for installation in confined spaces in engineering machinery, without cracking or leakage after bending.
* **Pulse Fatigue Performance:** Tested according to 1.33 times the working pressure standard, the number of pulses far exceeds the industry basic requirement of 200,000 cycles, with some specifications reaching 1 million cycles, suitable for high-frequency pressure impact conditions in cold-region equipment.
* **Media and Corrosion Resistance:** Tested by IRM903 oil immersion, the shrinkage rate is ≤10%, suitable for various media such as petroleum-based hydraulic oil and low-temperature anti-condensation hydraulic oil, while resisting rain, snow, and salt corrosion in cold regions, suitable for low-temperature operations on land and at sea. Key Parameters: Multiple Specifications to Adapt to All Scenarios
letone -55℃ cryogenic hydraulic hoses offer a wide range of specifications, covering mainstream models from 1/2 inch to 1.5 inches, precisely matching the hydraulic transmission needs of different equipment. Specific key parameters are as follows:
Applicable Scenarios: Covering All Fields in Extreme Cold Regions
With its stable adaptability to extreme environments, letone -55℃ cryogenic hydraulic hoses are widely used in core fields such as construction machinery, petroleum equipment, and mining machinery, becoming the "power transmission lifeline" for cold-region operations:
Construction Machinery: Adapted to excavators, loaders, bulldozers, and other equipment, ensuring the normal start-up, shutdown, and operation of hydraulic systems during winter construction in the cold regions of Northeast and Northwest my country, solving problems such as pipeline brittleness and operational jamming at low temperatures.
Petroleum Equipment: Suitable for onshore and offshore oil drilling and extraction equipment, stably delivering hydraulic oil and chemical agents in polar or high-latitude oilfield scenarios at -55℃. Performance indicators are superior to similar international products, and it has passed API Q1 quality management system certification and ABS product design approval.
Mining Machinery: Adapted to the hydraulic piping systems of mining and hoisting equipment in low-temperature mining areas, resisting corrosion from the low-temperature and high-humidity underground environment and reducing the risk of production stoppages due to pipeline failures.
Other Fields: Can be used in low-temperature braking pipelines for high-speed trains, hydraulic systems for polar scientific research equipment, etc., providing reliable protection for various special equipment in extreme cold regions.
Brand Strength: Technology-Driven, Setting a Benchmark in Ultra-Low Temperatures
Letone Technology, as a leading enterprise in the hydraulic hose industry, is deeply committed to the research and development of high-performance products with "low bending, high pressure, and long lifespan." It has established a professional extreme environment laboratory that can simulate complex working conditions such as -55℃ ultra-low temperature and high-pressure pulses to ensure product performance meets standards. The company has passed multiple international standard certifications such as ISO, SAE, and DIN. Its "Super Hercules" series hoses have achieved partial import substitution, and its -55℃ ultra-low temperature hydraulic hoses, as a core specialty product, have become the preferred partner for cold-region equipment manufacturers due to their technological breakthroughs and scenario adaptability.
With its comprehensive production system and service network, Letone Technology can provide customers with full-process services from product selection and customized R&D to installation guidance and after-sales maintenance. It practices the five "saving" service concept of "saving time, effort, trouble, money and worry" to help customers reduce costs and increase efficiency and ensure production safety in extreme cold regions.
