JIC 37° One-Piece Hydraulic Hose Fittings | TOPA

Explore TOPA JIC 37° one-piece hydraulic hose fittings by model, connection type, fitting angle, and hose series. Send your specifications for product selection and quotation support.

Products List

Topa offers high-quality JIC Crimped hydraulic fitting, we can provide different types of JIC one-piece hydraulic fittings, and they can used in many different applications. Browse TOPA JIC one-piece hose fittings by model, connection type, fitting angle, and compatible hose series. Use the product range below to find a starting model, or send us your fitting details for compatibility and selection review.

TP-10343 JIC Hydraulic Fitting

TP-10643 JIC Hydraulic Fitting

TP-13943 JIC Hydraulic Fitting

TP-13743 JIC Hydraulic Fitting

Topa JIC One-piece Fittings

This video shows how JIC’s one-piece hydraulic fitting manufacturer produces hydraulic fittings. Each step has strict quality control to keep your hydraulic hose fitting meet your requirements. If you want to know more information, please contact us freely.

If you want to learn more about our JIC one-piece hydraulic fittings, and the manufacturing process, or have any specific inquiries, please contact us. Our team is always available to provide you with detailed information, answer your questions, and offer personalized assistance.

Thank you for choosing our hydraulic fittings. We are dedicated to delivering products that meet your needs and exceed your expectations.

How to Select a JIC One-Piece Hose Fitting

A fitting name, product photo, or thread diameter alone is not enough to confirm compatibility. The connection type, hose construction, fitting configuration, material, and crimp specification must be reviewed together before a model is approved.

Male JIC to Female Komatsu 30 deg. Cone

Confirm the JIC Connection Type

Identify whether the required connection is JIC male, JIC female swivel, or another JIC-compatible configuration.

Verify the Thread and 37° Flare

Confirm the thread size, thread pitch, and 37° sealing surface.

Identify the Hose Specification

Provide the hose type, dash size, standard, reinforcement structure, and hose markings.

Select the Fitting Configuration

Choose the required straight, 45°, or 90° configuration according to the hose routing, installation space, and connection direction.

Confirm Material and Surface Treatment

Select carbon steel, stainless steel, or another required material according to the fluid, working environment, corrosion exposure, and service requirements.

Factory Manufacturing Process

Each production batch is inspected at defined manufacturing and final inspection stages. Inspection items may include raw material verification, first-piece dimensions, thread gauge inspection, critical dimension checks, appearance inspection, coating inspection, and final product verification.

Inspection results are recorded using TOPA’s production and quality control records. Depending on the product, order quantity, and customer requirements, customers may request available documents such as dimensional inspection reports, material certificates, coating information, product drawings, test reports, or pre-shipment inspection records.

Quality Check

Each hydraulic fitting is checked through a series of inspection and testing procedures to ensure consistent performance, reliable sealing, and long service life in hydraulic systems.

crimp Fitting Material cut

Raw Material Preparation

The selected steel material is prepared according to the fitting model, dimensions, and production order requirements. Material specifications should be confirmed before machining begins.

JIC Fitting CNC machine

CNC Machining

CNC machines form the fitting body, hose stem, hexagonal section, thread area, and sealing profile. Critical dimensions are controlled according to the approved drawing and product specification.

CNC thread

Thread Machining

The JIC thread is machined to the required diameter and pitch. The thread profile must match the specified JIC connection and allow correct assembly with the mating component.

profile projector test Topa

37° Flare Surface Machining

The sealing cone is machined to form the JIC 37° flare surface. The angle, surface condition, concentricity, and sealing edge must be controlled to reduce leakage risks.

check connection side

Dimensional Inspection

Inspectors check critical product dimensions using suitable measuring tools and gauges. Inspection may include thread size, thread pitch, sealing cone, hexagon dimensions, hose stem dimensions, and overall length.

crimp Fitting surface check

Appearance Inspection

The finished fitting is checked for visible defects such as burrs, damaged threads, incomplete coating, scratches, deformation, contamination, or damage to the sealing surface.

Custom JIC Fittings and Private Label Options

TOPA can review custom JIC one-piece fitting and private label requirements based on your drawings, samples, connection specifications, materials, branding needs, and expected order quantity. Available options must be confirmed according to the fitting design, manufacturing feasibility, tooling requirements, material availability, testing requirements, and production volume.
Packing and stock

From Product Requirement to Order Confirmation

A clear confirmation process helps reduce incorrect models, missing specifications, packaging mistakes, and delivery disputes. TOPA reviews the product and order requirements step by step before production begins.

Submit the Product Requirement

Send the available model number, drawing, sample, product photos, thread measurements, hose markings, required quantity, and destination country.

Confirm the Technical Specification

TOPA reviews the connection type, thread size, 37° sealing surface, fitting dimensions, hose type, hose size, fitting angle, material, surface treatment, and application conditions.

Review the Quotation and Requirements

Review the quoted product model, unit price, quantity, material, surface treatment, packaging method, production lead time, payment terms, and delivery terms.

Approve the Drawing or Sample

For custom products, replacement models, or specifications that cannot be confirmed from standard data, TOPA may provide a drawing or sample for approval.

Confirm the Production Order

Before production, confirm the final model list, quantities, technical requirements, inspection items, logo marking, labels, packaging instructions, delivery schedule, and shipping information.

Review the Pre-Shipment Documents

Before shipment, review the final packing list, invoice, carton information, shipping marks, inspection information, product photos, and other available order documents.

FAQ

What Is a JIC One-Piece Hydraulic Fitting?

A JIC one-piece hydraulic fitting combines the hose stem and ferrule into one assembled fitting. It normally uses a 37° flare connection and is designed to be crimped directly onto a compatible hydraulic hose. 

How Does a JIC One-Piece Fitting Create a Seal?

The primary seal is formed between the matching 37° flare surfaces of the male and female JIC connections. The threads pull the two flare surfaces together but are not normally the main sealing surface. Damaged cones, incorrect flare angles, contamination, misalignment, or excessive tightening may cause leakage.

How Can I Confirm the Correct JIC Thread Size?

Check both the thread outside diameter and thread pitch, then compare them with the JIC thread specification. Do not identify a fitting only by visual appearance or outside diameter because several thread systems can look similar. It is also important to confirm the 37° sealing surface and whether the connection is male or female swivel.

Can One JIC One-Piece Fitting Be Used with Any Hydraulic Hose?

No. The fitting must match the hose size, hose construction, reinforcement type, outside diameter, and approved assembly system. A fitting intended for a braided hose may not be suitable for a spiral, thermoplastic, or PTFE hose. Always confirm the fitting, hose, ferrule structure, crimp die, and final crimp diameter as one complete assembly.

How Do I Select Straight, 45°, or 90° JIC Fittings?

Select the fitting angle according to the hose routing, installation space, port direction, and required bend clearance. Straight fittings are suitable for direct connections, while 45° and 90° fittings can reduce hose bending in restricted spaces.

What Information Is Needed to Replace an Existing JIC One-Piece Fitting?

Provide the existing part number, clear fitting photos, male or female connection type, thread measurements, hose size, hose markings, fitting angle, material, surface treatment, and required quantity.

Send Your JIC Fitting Requirements

If you need more information about our JIC one-piece hydraulic fittings or require assistance in choosing the right products for your needs, please do not hesitate to contact us. Our expert team is always available to provide personalized support and answer any questions you may have.

If the complete specification is unavailable, send clear photos of the fitting, thread measurements, hose markings, and application details. TOPA will review the available information and identify any additional details required before confirming the product model.

JIC one-piece Hydraulic fitting catalog manufacturer

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