Precision-engineered wire braided hoses designed to withstand severe pulse fatigue, high friction, and extreme tropical climate conditions in Sylhet.
Navigating fluid power reliability in Sylhet’s tea processing plants, river sand extraction, energy extraction fields, and heavy construction sector.
The Sylhet Division of Bangladesh represents a vital economic pillar, driven by large-scale energy production (such as the Bibiyana and Rashidpur gas fields), expansive stone quarrying in Jaflong and Bholaganj, extensive tea estate mechanization in Sreemangal, and major civil infrastructure projects along the Dhaka-Sylhet Highway corridor. These high-demand industries rely heavily on robust fluid conveyance systems—specifically high-pressure hydraulic hoses, stainless-steel braided PTFE fuel lines, and high-performance sealing kits.
Operating machinery in Sylhet exposes hydraulic components to unique environmental challenges. The region experiences extreme annual rainfall, high relative humidity (exceeding 85%), ambient working temperatures rising above 38°C, and heavy particulate contamination from silica, mud, and river sediment. Conventional rubber hoses and standard seals degrade prematurely under these harsh conditions, leading to unexpected hydraulic fluid leakage, system pressure loss, and costly operational downtime.
Standard nitrile (NBR) inner liners often experience micro-cracking when exposed to high-frequency pulse loads under elevated humid conditions. Our specialized DIN EN853 1SN and SAE 100R1 hydraulic hose series incorporate synthetic oil-resistant rubber inner tubes combined with high-tensile single steel braid reinforcement. This design delivers superior impulse endurance (tested beyond 200,000 continuous impulse cycles at 133% of working pressure) to ensure uninterrupted operations across Sylhet's industrial landscape.
Founded in 1996 | Evolving from Xianyang Kelong Rubber Products Institute into a Global Hydraulic Engineering Powerhouse.
Shaanxi Kelong New Materials Technology Co., Ltd. was established in 1996, growing out of the Xianyang Kelong Rubber Products Institute. We are a technological innovation company integrating R&D, production, and sales. We concentrate on hydraulic seal sets, high-pressure hoses, coal mine auxiliary transportation equipment, equipment maintenance, and technical services. Our products are widely applied in coal mining, civil aviation, high-speed railways, engineering machinery, wind power generation, and major industrial projects across the globe.
Our sealing products utilize automated production technology and precision equipment from DMH Company in Austria, ensuring exact dimensional tolerances and zero-leakage profiles for heavy hydraulic cylinders.
Our high-pressure hydraulic hose production facility relies on complete production line equipment imported directly from Italy, guaranteeing wire braiding tension uniformity and high burst-pressure factors.
Over 180 engineers and technical experts make up 40%+ of our educated workforce. In the past three years, our annual R&D investment has consistently exceeded 7% of total revenues.
Designed for chemical stability, zero-static fuel conveyance, and extreme temperature operations in process plants and heavy logistics.
Demonstrated endurance across severe operating environments worldwide and heavy infrastructure installations in Sylhet.
Ultra-tough, high-pressure hydraulic hoses engineered for rock-solid machinery performance in heavy stone extraction and aggregate crushing plants around Jaflong and Bholaganj.
Rigorously tested under dynamic flex loading; maintains structural integrity and pressure stability during heavy-lift bridge construction and urban flyover development.
Innovative design combining flexibility and extreme salt/sand abrasion resistance. Essential for seasonal river silt clearance and navigational channel maintenance in Sylhet.
Upgrading thermal and gas-fired power generation efficiency with high-temperature static-free PTFE lines resistant to thermal breakdown and vibration fatigue.
High-density polyurethane seals engineered for tunnel boring machines, delivering long service life in high-pressure subterranean silt conditions while cutting maintenance frequency.
Our engineering staff provides custom length cut-offs, pre-crimped flange connections, and customized polymer seal formulations tailored to your exact pressure requirements.
Comprehensive technical comparison of hydraulic lines and polyurethane cylinder sealing sets for Sylhet industrial equipment suppliers.
| Product Category | Standard Specification | Material Construction | Working Temp. Range | Pressure Rating (WP / BP) | Sylhet Application Fit |
|---|---|---|---|---|---|
| Hydraulic Hose 1SN | SAE 100R1 AT / EN853 1SN | Oil-resistant NBR + 1 High-Tensile Steel Braid | -40°C to +100°C | Up to 225 Bar (4:1 Safety Factor) | Earthmoving excavators, tea press machinery |
| PTFE Braided Fuel Line | SAE 100R14 Stainless Steel | Smooth-bore PTFE Core + SS304 Wire Braid | -60°C to +260°C | Up to 200 Bar | Gas power plant fuel lines, chemical transport |
| PU U-Cup Rod Seals | UN / SPGO / V-Packing | High-Grade Austrian Polyurethane (PU/TPU) | -35°C to +110°C | Up to 400 Bar (40 MPa) | Hydraulic cylinder repair, stone quarry jacks |
| Excavator Seal Kits | OEM Standard / Turning Process | PU + NBR Elastomer + POM Guide Rings | -40°C to +120°C | Heavy Impulse Load Qualified | Komatsu, CAT, Kobelco machinery in Sylhet |
Using improper seal elastomers under tropical ambient temperatures leads to premature seal swelling, hardened lip edges, and hydraulic fluid blowouts. Kelong's proprietary PU compounds feature hydrolyzed stabilization, ensuring high resistance to moisture-induced degradation, high abrasion resistance against silica gravel found in Jaflong river beds, and prolonged elasticity during continuous duty cycles.
Premium polyurethane, NBR, and PTFE seal kits manufactured with Austrian DMH equipment for long-lasting hydraulic cylinder sealing.
Addressing key technical specifications, regional shipping logistics, fluid compatibility, and bulk pricing queries for Sylhet enterprises.
Our DIN EN853 1SN and SAE 100R1 hydraulic hoses feature highly weather-resistant and anti-abrasive synthetic outer rubber layers. The steel wire reinforcement layer undergoes specialized electro-plating treatment to resist atmospheric rust and galvanic corrosion caused by Sylhet’s heavy annual monsoons.
We routinely supply engineering clients in Bangladesh. Standard production orders ship directly via major sea routes to Chittagong Port (Chattogram), with expedited inland freight connection to Sylhet industrial parks within 14–21 business days. Emergency replacement seal kits can be dispatched via air freight directly to MAG Osmani International Airport, Sylhet.
Yes. Utilizing state-of-the-art DMH CNC turning technology from Austria, we manufacture custom hydraulic cylinder seals, U-cups, wipers, and V-packings according to non-standard dimensions without requiring expensive mold development cycles.
Absolutely. Our stainless-steel braided PTFE metal hoses and DIN EN853 1SN biodegradable-certified series are compatible with HEES, HETG, and HEPG synthetic bio-oils used in environmentally sensitive river dredging and tea plantation machinery around Sylhet.
Get competitive pricing, certified ISO/IRIS quality assurance, and direct technical guidance from our team of over 180 engineers today.
Kelong New Materials