78 Series Hydraulic Crimp Fittings Supplier in China

Product Lists

The 78 Series one-piece hydraulic fittings are designed for the most demanding hydraulic applications, offering a permanent, high-pressure connection in a compact, leak-resistant design. By integrating the hose stem and ferrule into a single component, the 78 Series eliminates multiple assembly steps, reduces potential leak points, and delivers a stronger, more reliable connection.

10678

Female JIC 37˚ - Swivel

13978

Female JIC 37˚ - Swivel - 90˚ Elbow - Short Drop

11578

SAE Code 61 Flange Head

11778

SAE Code 61 Flange Head - 45˚ Elbow

11978

SAE Code 61 Flange Head - 90˚ Elbow

16A78

SAE Code 62 Flange Head

16F78

SAE Code 62 Flange Head - 45˚ Elbow

16N78

SAE Code 62 Flange Head - 90˚ Elbow

1JS78

Female Seal-Lok® - Swivel - Long

1J778

Female Seal-Lok® - Swivel - 45˚ Elbow

1J978

Female Seal-Lok® - Swivel - 90˚ Elbow - Short Drop

1C978

Female Metric S - Swivel - (24˚ Cone with O-Ring)

11C78

Female Metric S - Swivel - 90˚ Elbow - (24˚ Cone with O-Ring)

Technical Specifications Overview

Size Range

1/4″ to 2″

Compatible Medie

Petroleum-based hydraulic oils, lubricants, and other approved fluids

Configuration Options

Straight, 45°, and 90° elbows; JIC, NPTF, SAE Code 61/62, DIN Metric, and ORFS port types

Working Pressure

Up to 6,000 psi (varies by size and hose combination)

Standards Compliance

Meets or exceeds SAE and ISO performance requirements

Key Features & Advantages

Engineered to meet the highest standards in hydraulic connectivity, the 78 series crimp fittings 78 series crimp fittings are built for strength, durability, and versatility. Whether for standard or extreme-duty applications, these fittings deliver consistent results backed by 78 series crimp fittings’s quality assurance.

One-Piece Integrated Design

Combines the stem and ferrule into one precision-machined component, eliminating the need for separate collars or sleeves. This reduces assembly time, simplifies inventory management, and ensures a more consistent crimp profile.

High-Pressure Capability

Engineered for six-spiral wire hydraulic hoses, the 78 Series can handle extreme working pressures, making it suitable for construction, mining, oil & gas, forestry, and other heavy-duty sectors.

No-Skive Compatibility

Works with No-Skive hoses, meaning no removal of the outer hose cover is needed before crimping. This not only saves time but also reduces the risk of hose damage during preparation.

Optimized Flow Path

Internal geometry is designed to minimize turbulence and maintain consistent fluid velocity, reducing heat generation and ensuring efficient system performance.

Material Options

Available in high-strength carbon steel for standard hydraulic applications or stainless steel for corrosive, marine, or chemical processing environments.

Consistent, Repeatable Assembly

Designed to work seamlessly with ’s Parkrimp crimping equipment, ensuring every fitting is crimped to exact tolerances for long-term leak-free performance.

Applications

The 78 series one-piece fittings are engineered to perform in the most demanding environments, delivering secure, leak-free connections where system uptime and safety are critical.

Construction

Ideal for high-pressure hydraulic systems in excavators, cranes, bulldozers, and concrete pumps. These fittings withstand constant vibration, heavy loads, and varying environmental conditions on job sites.

Mining Equipment

Built to handle the extreme demands of mining operations, including haul trucks, loaders, and drilling rigs. The 78 Series resists abrasion from dust and debris, endures high-vibration conditions, and maintains seal integrity under continuous heavy loads.

Industrial Sector

Suitable for hydraulic systems in manufacturing plants, steel mills, and processing facilities. From hydraulic presses to injection molding machines, these fittings help maintain stable operating pressures, improve system efficiency, and enable quick hose replacements with minimal disruption to production lines.

Why Choose Topa？

At Topa, we supply 78 Series one-piece fittings that combine -level quality with competitive pricing, flexible order quantities, and global delivery. Our dedicated technical team can help you select the right fitting for your application and provide custom options including special thread types, branding, and packaging.

Partner with Topa to get:

Fast response quotes

Reliable lead times and global shipping

Customization for specific industry needs

Consistent quality control backed by ISO-certified processes

FAQ

What is the main difference between the 78 Series and other hydraulic fittings?

The 78 Series is a one-piece design where the stem and ferrule are integrated. This simplifies assembly, improves consistency, reduces leak points, and is ideal for high-pressure spiral hose applications.

Can the 78 Series be used with any hydraulic hose?

The 78 Series is specifically designed for use with -approved No-Skive spiral hoses. Using non-compatible hoses may lead to performance issues or void warranty coverage.

What pressure ratings can the 78 Series handle?

Depending on size and hose combination, the 78 Series can handle working pressures up to 6,000 psi.

Do I need to skive the hose before assembly?

No. The 78 Series is fully compatible with No-Skive hoses, eliminating the need to remove the outer cover prior to crimping.

What materials are available?

Standard fittings are manufactured in high-strength carbon steel. Stainless steel versions are available for applications involving corrosive fluids, marine environments, or chemical exposure.

Are there different configurations available?

Yes. The 78 Series is offered in multiple configurations including straight, 45°, and 90° elbows, with thread options such as JIC, NPTF, SAE Code 61/62 flanges, DIN Metric, and ORFS.