Interlock
Interlock
HT Hydraulics supplies high-quality interlock hose fittings for heavy-duty hydraulic hose assemblies used in construction machinery, mining equipment, agricultural machinery, oil & gas systems, marine equipment and industrial hydraulic systems.
Interlock hose fittings are designed for high-pressure hydraulic applications where strong mechanical retention, stable sealing performance and long service life are required. Compared with standard hydraulic hose fittings, interlock hydraulic fittings provide a more secure connection between the hose, fitting nipple and ferrule, making them suitable for severe working conditions with high pressure, vibration, impulse and shock load.
Our interlock hose fittings are available in JIC, BSP, Metric, ORFS, NPT, NPSM, SAE flange and other connection types. We also support customized hydraulic fittings according to drawings, samples, hose sizes, thread standards and application requirements.
Interlock hose fittings are high-pressure hydraulic fittings designed to lock tightly with the steel wire reinforcement layer of hydraulic hoses after skiving and crimping. They are commonly used with multi-spiral hydraulic hoses, such as R13, R15, 4SP, 4SH and other heavy-duty hose structures.
In a typical interlock hose assembly, the hose cover and inner tube are skived according to the assembly requirements. The fitting nipple and ferrule then form a strong locking structure with the hose reinforcement layer. This interlocking design helps improve pull-off resistance, sealing stability and pressure performance.
Because of this structure, interlock hydraulic hose fittings are widely used in high-pressure hydraulic systems where leakage, hose blow-off or fitting failure can cause equipment downtime and safety risks.
Interlock hose fittings are preferred for demanding hydraulic systems because they provide stronger assembly performance than many standard crimp fittings. They are especially suitable for applications that require high pressure resistance, high impulse resistance and secure hose retention.
Strong mechanical locking
The interlock structure grips the hose reinforcement layer more securely, helping reduce the risk of hose pull-off under pressure.
Reliable sealing performance
Correctly matched interlock fittings, ferrules and hoses help create stable sealing performance in high-pressure hydraulic circuits.
Suitable for spiral hydraulic hoses
Interlock fittings are widely used with high-pressure spiral hoses, including R13, R15, 4SP and 4SH hydraulic hoses.
Better performance under vibration
For mobile machinery and heavy equipment, interlock fittings help maintain connection stability under vibration, impact and continuous movement.
Longer service life
A secure hose-fitting connection can help reduce leakage, maintenance frequency and unplanned downtime.
Precision Engineering: Crafted with precision using advanced CNC machines and manufacturing techniques, ensuring impeccable fit and function.
Premium Materials: Constructed from high-grade materials such as stainless steel, our fittings are engineered to withstand high pressures and harsh operating conditions.
Reliable Performance: Designed to provide leak-free connections, our fittings enhance the efficiency and safety of hydraulic systems, reducing downtime and maximizing productivity.
Versatility: Compatible with a wide range of hydraulic hoses and applications, our fittings offer versatility and adaptability to diverse system requirements.
Ease of Installation: Featuring a user-friendly design, our fittings facilitate easy installation and maintenance, minimizing operational complexities.
HT Hydraulics offers a wide range of interlock hose fittings for different hydraulic systems, markets and equipment requirements.
| Product Type | Connection / Standard | Common Structure | Typical Applications |
|---|---|---|---|
| JIC Interlock Hose Fittings | JIC 74° cone seal | Straight, 45°, 90° | Construction machinery, agricultural equipment, mobile hydraulic systems |
| BSP Interlock Hose Fittings | BSP male / BSP female thread | Straight, 45°, 90° | Industrial hydraulic systems, European and Asian hydraulic equipment |
| Metric Interlock Hose Fittings | Metric thread, DIN 24° cone, O-ring seal | Straight, 45°, 90° | Construction machinery, hydraulic power units, industrial equipment |
| ORFS Interlock Hose Fittings | O-ring face seal | Straight, 45°, 90° | High-pressure systems requiring low leakage performance |
| NPT Interlock Hose Fittings | NPT tapered thread | Straight, 45°, 90° | American hydraulic systems, oilfield equipment, industrial machinery |
| NPSM Interlock Hose Fittings | NPSM straight thread | Straight, 45°, 90° | Hydraulic maintenance and replacement hose assemblies |
| SAE Flange Interlock Fittings | SAE Code 61 / Code 62 / 9000 PSI | Straight, 45°, 90° flange type | Mining machinery, oil & gas equipment, heavy-duty hydraulic systems |
| Interlock Ferrules and Sleeves | Matching ferrules for interlock fittings | Skive ferrules, sleeves | Hydraulic hose assembly production and crimping |
Our interlock hose fittings can be supplied in different structures, sizes, materials and surface treatments to meet your hydraulic system requirements.
| Option Category | Available Choices |
|---|---|
| Fitting Structure | Straight, 45° elbow, 90° elbow |
| Connection Types | JIC, BSP, Metric, ORFS, NPT, NPSM, SAE Flange |
| Flange Standards | SAE Code 61, SAE Code 62, 9000 PSI flange |
| Hose Compatibility | R13, R15, 4SP, 4SH, spiral hydraulic hoses, skived hydraulic hoses |
| Material Options | Carbon steel, stainless steel |
| Surface Treatment | Zinc plating, zinc-nickel plating, customized anti-corrosion treatment |
| Customization | Thread type, size, angle, material, surface treatment, drawing-based production |
| Supply Type | Standard products, customized fittings, bulk supply, OEM production |
JIC interlock hose fittings use a 74° cone sealing structure and are widely used in hydraulic systems for construction machinery, agricultural equipment, industrial machines and mobile hydraulic equipment. Straight, 45° and 90° types are available.
BSP interlock fittings are commonly used in European, Asian and general industrial hydraulic systems. They are suitable for hydraulic hose assemblies requiring BSP male, BSP female or related thread connections.
Metric interlock hose fittings are designed for DIN hydraulic systems and are commonly used in construction machinery, agricultural machinery, hydraulic power units and industrial equipment. Metric 24° cone and O-ring sealing options can be supplied.
ORFS interlock fittings provide excellent sealing performance for hydraulic systems where leakage control is important. They are suitable for high-pressure hydraulic circuits, mobile machinery and equipment working under vibration.
NPT and NPSM interlock hydraulic fittings are available for hydraulic systems using American thread standards. They are often used in industrial hydraulic equipment, oilfield systems and machinery maintenance applications.
SAE flange interlock fittings are suitable for heavy-duty hydraulic systems with high flow and high pressure requirements. Code 61, Code 62 and 9000 PSI flange types can be supplied for mining machinery, oil & gas equipment, construction machinery and other severe-duty applications.
We also supply matching interlock ferrules and sleeves for hydraulic hose assembly production. Correct matching between the hose, fitting nipple, ferrule and crimping parameters is essential for safe hydraulic performance.
24° Cone O-Ring Seal Heavy-Duty Fittings
BSP Threaded Fittings
NPTF Threaded Fittings
NPSM 60° Cone Seal Fittings
ORFS Face Seal Fittings
JIC 74° Cone Seal Fittings
GAS 60° Cone Seal Fittings
SAE Heavy-Duty Flange Fittings
9000 PSI Flange Fittings (Sometimes using D-Rings instead of O-Rings)
Dual Connection Fittings
Interlock hose fittings are mainly used for high-pressure wire-reinforced hydraulic hoses, especially multi-spiral hose structures. Correct hose compatibility is important for crimping performance, sealing reliability and working safety.
| Hose Type | Typical Feature | Interlock Fitting Suitability |
|---|---|---|
| R13 Hydraulic Hose | Heavy-duty spiral hose for very high-pressure systems | Suitable for severe hydraulic applications |
| R15 Hydraulic Hose | High-pressure spiral hose with strong impulse resistance | Suitable for mining, construction and heavy machinery |
| 4SP Hydraulic Hose | Four-wire spiral hydraulic hose | Suitable for high-pressure hydraulic systems |
| 4SH Hydraulic Hose | Heavy-duty four-wire spiral hydraulic hose | Suitable for demanding hydraulic circuits |
| Skived Hydraulic Hose | Hose cover or inner tube is skived before assembly | Suitable when matched with correct interlock fittings and ferrules |
Interlock hydraulic hose fittings are used in many heavy-duty hydraulic systems where pressure, vibration and working conditions are demanding.
| Application Area | Typical Equipment | Buyer Concerns | Recommended Fitting Types |
|---|---|---|---|
| Construction Machinery | Excavators, loaders, cranes, bulldozers, concrete pumps | High pressure, vibration, hose movement, downtime risk | JIC, BSP, Metric, SAE flange interlock fittings |
| Mining Equipment | Mining trucks, drilling rigs, crushers, underground machinery | Shock load, dust, heavy pressure, continuous operation | SAE flange, Code 62, 9000 PSI interlock fittings |
| Oil & Gas Equipment | Drilling systems, oilfield machinery, fluid power systems | High pressure, temperature change, sealing reliability | NPT, SAE flange, stainless steel interlock fittings |
| Agricultural Machinery | Tractors, harvesters, sprayers, lifting systems | Outdoor use, dust, vibration, frequent movement | BSP, Metric, JIC interlock hose fittings |
| Marine and Offshore Systems | Marine hydraulic equipment, offshore platforms, deck machinery | Corrosion resistance, sealing stability, humid environment | Stainless steel or anti-corrosion interlock fittings |
| Industrial Hydraulic Systems | Hydraulic presses, injection molding machines, steel mill equipment | Stable pressure, long service life, leakage control | ORFS, Metric, BSP, SAE flange interlock fittings |
ISO8434-1 -- DIN3861
ISO8434-2 -- SAE J514
ISO8434-3 -- SAE J1453
JIS B8363
SAE J518
HT Hydraulics, with 36 years of industry experience, is one of the world's leading manufacturers of hydraulic hose fittings. HT Hydraulics provides high-quality interlocking hose fittings, renowned for its excellent technical capabilities and advanced equipment.
HT Hydraulics has approximately 200 employees and a production facility covering 30,000 square meters. The company owns over 400 advanced production machines, including precision automatic CNC lathes, pipe benders, crimping machines, and hot forging machines, with an annual production capacity of 10 million hydraulic fittings. Additionally, HT Hydraulics is equipped with advanced inspection equipment such as projectors for dimensional checks, carbon-sulfur analyzers, and salt spray testing devices to ensure the highest quality performance of products.
HT Hydraulics has obtained CE, ISO9001, and IATF16949 certifications and has established close partnerships with numerous outstanding clients worldwide.
The interlocking hose fittings produced by HT Hydraulics are made from 100% raw materials and finished products from its own forging plant, ensuring product quality, cost, and delivery time. Inspections are conducted both after production and before delivery to minimize defect rates. Both raw material suppliers and surface treatment suppliers are above industry standards, with collaborations lasting over 30 years.
HT Hydraulics' interlocking hose fittings are robust, leak-free, and worry-free, making them ideal for end users, distributors, wholesalers, factories, and more. Contact us now for a quote!
HT Hydraulics focuses on stable quality, accurate machining and reliable batch supply for global hydraulic customers. Our interlock hose fittings are manufactured with strict control over raw materials, dimensions, threads, surface treatment and final inspection.
Stable product quality helps customers reduce leakage risk, assembly failure, replacement cost and after-sales problems.
| Quality Control Step | Inspection Focus | Benefit for Buyers |
|---|---|---|
| Raw Material Inspection | Material grade, strength, surface condition | Ensures stable product strength and durability |
| Forging and Machining Control | Shape accuracy, machining consistency | Improves fitting stability and assembly performance |
| Thread Inspection | Thread size, accuracy, sealing surface | Reduces leakage and installation problems |
| Dimension Inspection | Key sizes, tolerances, fitting structure | Ensures compatibility with hoses and ferrules |
| Surface Treatment Inspection | Plating thickness, appearance, corrosion resistance | Improves service life and batch consistency |
| Salt Spray Testing | Anti-corrosion performance | Suitable for harsh or humid working environments |
| Assembly Compatibility Check | Fitting, ferrule and hose matching | Helps reduce crimping failure and hose blow-off risk |
| Final Batch Inspection | Appearance, dimensions, packaging, order consistency | Ensures stable quality before shipment |
Experience the difference that high-quality interlock hose fittings can make in your hydraulic systems. Trust HT Hydraulics as your preferred interlock hose fittings manufacturer, and discover the unparalleled performance and reliability of our Interlock Integrated Hose Fittings and Interlock Hydraulic Fittings. Contact us today to learn more about our products and services.
Partner with HT Hydraulics, your trusted Manufacturer, for top-quality hydraulic High-Quality Interlock Hose Fittings solutions. We offer competitive prices, special discounts, and personalized quotations tailored to your industry needs. Our comprehensive range of products includes One Piece Hose Fittings, Two-Piece Hose Fittings and Adapters, ensuring that we provide the perfect solution for every hydraulic connection.
Interlock hose fittings are used for high-pressure hydraulic hose assemblies, especially in systems that require strong hose retention, reliable sealing and resistance to vibration or impulse pressure.
Yes. Interlock hose fittings are commonly used with high-pressure spiral hydraulic hoses such as R13, R15, 4SP and 4SH. The exact fitting and ferrule should be selected according to hose size and hose structure.
Interlock fittings are designed to engage with the hose reinforcement layer after skiving, creating a stronger mechanical connection. Standard crimp fittings are more commonly used for low-pressure or medium-pressure hydraulic hose assemblies.
In most cases, interlock hose fittings require internal and external skiving before crimping. Correct skiving helps the fitting lock with the reinforcement layer and improves sealing performance.
Common connection types include JIC, BSP, Metric, ORFS, NPT, NPSM and SAE flange. Straight, 45° and 90° versions can be supplied.
Yes. We supply SAE flange interlock fittings, including Code 61, Code 62 and 9000 PSI flange options for high-pressure hydraulic applications.
Yes. HT Hydraulics can produce custom interlock hose fittings according to drawings, samples, thread standards, materials and surface treatment requirements.
Common material options include carbon steel and stainless steel. Surface treatment can be customized according to corrosion resistance and working environment requirements.
You can send us the fitting type, hose size, thread standard, material, surface treatment, quantity and drawings or sample photos. Our team will help confirm the correct product and provide a quotation.
Looking for reliable interlock hose fittings for high-pressure hydraulic hose assemblies? HT Hydraulics can supply standard and customized hydraulic interlock fittings for construction machinery, mining equipment, oil & gas systems, agricultural machinery, marine equipment and industrial hydraulic systems.
Contact us today to get product recommendations, technical support and a quotation for your interlock hose fittings order.
