SAE100 R2AT Hydraulic Hoses: Specifications, Applications, and Selection Guide

SAE 100R2AT is a high-pressure hydraulic hose type commonly used to convey compatible hydraulic fluids in mobile and industrial equipment. Its defining reinforcement is two layers of high-tensile steel wire braid, while its tube and cover are typically made from synthetic rubber compounds. To select the right hose, compare the required working pressure, fluid compatibility, temperature range, size, bend radius, and end connections against the manufacturer’s specifications—not just the SAE designation.

For more information, please visit our website.

This guide is for equipment manufacturers, distributors, maintenance teams, and purchasing professionals evaluating SAE100 R2AT hydraulic hoses. At XINCHI, we help buyers turn operating conditions and connection requirements into a clear product specification for quotation and supply. Exact ratings and available configurations can vary by hose size and construction, so verify the product data for the specific item you intend to purchase.

Key Takeaways

SAE 100R2AT identifies a two-wire-braid hydraulic hose construction; it does not mean every size has the same pressure rating.
Match the hose to fluid, pressure, temperature, movement, routing, and fitting requirements before requesting a quote.
Confirm the manufacturer’s data sheet, applicable standard, hose dimensions, and assembly compatibility for the selected size.
Provide a complete operating profile to suppliers to reduce specification gaps, sourcing delays, and avoidable hose replacement.

What Is SAE 100R2AT?

SAE 100R2AT is a hydraulic hose classification associated with SAE J517. The “R2” designation describes a hose reinforced with two steel wire braids, and “AT” is commonly used in product descriptions for a type that meets the relevant dimensional requirements associated with the standard. The hose generally has an oil-resistant synthetic rubber tube and a rubber outer cover, but compound details should be checked against the supplier’s product information.

The wire reinforcement helps the hose contain pressurized fluid, while the inner tube provides the fluid-contact surface and the cover helps protect the assembly from its surroundings. These layers work together, but their performance depends on the hose’s complete design and condition. A standard designation is a useful starting point, not a substitute for checking the actual product rating and application limits.

Specifications Buyers Should Confirm

SAE 100R2AT hoses are offered in different nominal sizes, each with its own dimensions, working pressure, burst pressure, and minimum bend radius. A commonly encountered catalog range is size -04 through -32, but the range available depends on the manufacturer and product line. Do not infer a pressure rating from the size or reinforcement description alone; request the specification for the exact hose diameter.

Construction, Pressure, and Temperature

The core construction feature is two steel wire braid layers. Hose catalogs commonly state a temperature range around -40°C to +100°C for certain SAE 100R2AT products, but actual limits depend on the compound, fluid, and operating conditions. Treat this as a possible catalog range rather than a universal guarantee, and confirm the temperature rating for the selected hose and application.

Working pressure is size-specific and must be taken from the manufacturer’s technical data. Also consider pressure surges, cyclic loading, and any applicable system requirements rather than using normal operating pressure as the only criterion. A hose should not be selected or operated beyond the limits stated for its specific construction and assembly.

Fluid Compatibility and Dimensions

Check that the tube material is compatible with the hydraulic fluid, additives, and any cleaning or flushing fluids it may encounter. Compatibility can vary with fluid formulation, temperature, and exposure duration. If the system uses a specialized fluid, provide its exact product name or chemistry to the hose supplier for confirmation.

Confirm the inside diameter, outside diameter, length, fitting type, and connection size. The minimum bend radius is also important because a hose routed too tightly can experience excess stress or restricted flow. Ask for the manufacturer’s bend-radius value for the chosen size and account for movement, vibration, and fitting orientation in the assembly layout.

With competitive price and timely delivery, XINCHI sincerely hope to be your supplier and partner.

Applications and Suitability

SAE 100R2AT hoses are commonly considered for hydraulic lines on construction and agricultural machinery, material-handling equipment, industrial machinery, and other systems that require a flexible pressure line. Typical uses may include pressure, return, or pilot circuits, but suitability depends on the circuit pressure, fluid, temperature, and the equipment manufacturer’s requirements. A hose appropriate for one circuit may not be suitable for another on the same machine.

For mobile equipment, consider abrasion, external impact, weather exposure, and repeated flexing. In stationary industrial installations, routing, heat sources, vibration, and maintenance access may be more relevant. Where the hose is exposed to unusually harsh conditions, ask whether a different cover option or hose type is available and compare its documented limits with the application.

How to Select the Right Hose

Document the operating conditions. Record normal and peak pressure, fluid type, temperature range, duty cycle, and whether the line experiences pressure pulses or movement.
Identify size and routing. Confirm the required inside diameter and length, then check bend radius, routing clearance, and any points of abrasion or heat exposure.
Specify end connections. Provide fitting type, thread or flange details, orientation, and any assembly-length measurement method required by your equipment.
Verify the product data. Compare the supplier’s ratings and dimensions for the exact size with your system requirements and applicable equipment specifications.
Review assembly and maintenance needs. Confirm that hose, fittings, and assembly methods are compatible, and define inspection or replacement practices appropriate to your equipment.

Common Selection Errors

A frequent mistake is assuming that “two-wire” automatically means the hose meets the system’s pressure requirement. Another is choosing by inside diameter alone while overlooking fluid compatibility, bend radius, temperature, or fitting details. Buyers should also avoid replacing a hose with a different type solely because it appears to fit; verify the pressure and application requirements first.

Do not use a hose with visible damage, leakage, exposed reinforcement, or signs of deterioration. Follow equipment and hose manufacturer guidance for inspection, replacement, and safe depressurization before maintenance. Selection guidance cannot replace an engineering review when the system presents unusual hazards or operating conditions.

Pricing, MOQ, and Lead-Time Considerations

Pricing depends on factors such as hose size, construction, order quantity, requested length, cover or packaging requirements, and whether assemblies or fittings are included. Minimum order quantities and lead times are supplier- and configuration-specific, so they should be confirmed during quotation rather than assumed from the hose designation. For repeat purchases, align the product specification and packaging details with your forecast and replenishment needs.

To support an accurate quote, send the required size and quantity, target standard, fluid and temperature conditions, working pressure, hose length, fitting details, delivery destination, and any documentation requirements. If you are replacing an existing hose, share readable markings or dimensional information where available, while still confirming the replacement against the equipment requirements. This information helps suppliers assess feasibility and identify missing details before order placement.

Supplier Evaluation Checklist

Can the supplier provide product data for the specific size, including working pressure, dimensions, and bend radius?
Can the supplier clarify the stated SAE standard and explain any product-specific limitations?
Are fluid compatibility and temperature requirements reviewed before the order is confirmed?
Are fitting options, assembly requirements, packaging, MOQ, and lead time clearly stated in the quotation?
Can the supplier support repeat orders with consistent identification and agreed specifications?

At XINCHI, we support B2B buyers sourcing rubber products by reviewing application details and clarifying hose, size, and supply requirements before quotation. We can discuss product configuration, fitting needs, order quantities, and delivery expectations based on the information provided. Product availability, technical ratings, and documentation should be confirmed for each requested specification.

Conclusion: Confirm the Application Before You Order

SAE100 R2AT hydraulic hose is a two-steel-wire-braid hose type used in many hydraulic applications, but the designation alone does not establish that a particular hose is suitable for your system. The right choice depends on the exact size, working pressure, fluid, temperature, routing, bend radius, and end connections. Confirm each requirement against product-specific data before purchasing or replacing a hose.

Your next step is to prepare an operating profile and a complete connection specification, then request a quotation with the relevant technical data for review. If you are evaluating SAE100 R2AT hoses for a new project or repeat supply, contact XINCHI with your size, quantity, application, and delivery requirements so we can discuss a suitable sourcing option.