SAE 100R2AT is a high-pressure hydraulic hose construction commonly made with an oil-resistant synthetic-rubber tube, two braided layers of high-tensile steel wire, and a rubber outer cover. Buyers generally consider it for hydraulic circuits where pressure, fluid compatibility, temperature, routing, and abrasion exposure suit the hose’s documented ratings. The exact working pressure, dimensions, minimum bend radius, and temperature limits depend on the hose size and manufacturer’s specification, so confirm them before ordering.
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This guide explains the construction, typical applications, key specifications, and practical selection checks for B2B purchasers. At Hengshui Xinchi Hose Manufacturing Co., Ltd., we recommend comparing the required operating conditions with the product data and assembly requirements rather than choosing by the R2AT designation alone.
This guide is intended for hydraulic equipment manufacturers, distributors, maintenance teams, and importers evaluating hose for new equipment or replacement work. It is useful when preparing an RFQ, comparing supplier quotations, or checking whether a proposed hose can meet an application’s operating conditions. It is not a substitute for the equipment manufacturer’s requirements or the hose supplier’s technical documentation.
R2AT hose is commonly described as a medium- or high-pressure hydraulic hose with two steel-wire braid reinforcement layers. Its basic construction typically includes an inner tube designed for hydraulic fluids, the wire reinforcement, and an outer cover intended to protect the hose from its installation environment. Construction details and material formulations can vary, so the supplier’s product datasheet should govern the final assessment.
The inner tube is generally made from synthetic rubber selected for hydraulic-fluid service, while the reinforcement uses braided steel wire. The cover is commonly rubber and may be offered in compounds or finishes intended for different external conditions. Ask the supplier to confirm the specific tube and cover materials, as well as any available alternatives, rather than assuming all R2AT hoses have identical compounds.
Fittings and hose assemblies are separate parts of the specification. A hose may be supplied as a bulk length or assembled with end connections, depending on the supplier’s capabilities and the buyer’s requirements. For an assembly inquiry, provide fitting type, connection size, orientation, and finished length in addition to the hose designation.
A product designation is only one part of a complete hose specification. Compare each supplier’s stated ratings and dimensions for the exact hose size you intend to buy. When a datasheet does not provide a value or its test basis, request clarification before approving the product.
| Specification | What to Confirm | Why It Matters |
|---|---|---|
| Working pressure | Rated pressure for the selected size and construction | The hose must suit the circuit’s operating requirements and pressure conditions. |
| Inside and outside diameter | Published dimensions and applicable tolerances | Diameter affects flow planning, fit, and connection compatibility. |
| Temperature range | Permitted range for the hose and intended hydraulic fluid | Excessive heat or cold may affect service suitability. |
| Minimum bend radius | Value for the selected size, measured as specified by the manufacturer | Routing below the permitted radius can create installation and durability risks. |
| Fluid compatibility | Compatibility of the tube material with the actual fluid | Fluid type and formulation can affect material suitability. |
| Cover and environment | Exposure to abrasion, weather, chemicals, or other site conditions | The outer cover must suit the conditions around the hose route. |
Some R2AT product literature lists an operating temperature range of approximately -40°C to +100°C, but this should not be treated as a universal rating. The permitted range can depend on the specific product, fluid, and operating conditions; confirm the current datasheet for the hose under consideration. Likewise, pressure ratings vary by size, so do not extrapolate a rating from one diameter to another.
SAE 100R2AT hoses are used in hydraulic systems where the application calls for a two-wire-braid hose and the product’s ratings match the circuit. Potential uses include hydraulic lines on mobile equipment, industrial machinery, and equipment assemblies. Suitability depends on the machine design and operating conditions, not simply on the application category.
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Start by identifying the hydraulic fluid, normal operating pressure, temperature range, and any pressure surges specified by the equipment manufacturer. Then check the hose size and routing, including available space and the minimum bend radius. Finally, consider external exposure such as rubbing, heat, weather, or chemical contact and confirm that the cover is appropriate.
As a purchasing example, an RFQ could specify a 1/2 in inside diameter if that is the required system size and request a 10 m finished assembly if that is the needed installed length. These figures are examples for communicating dimensions, not standard R2AT ratings or recommended sizes. Always use the equipment drawing or engineering specification to set actual requirements.
A frequent mistake is treating the R2AT label as a complete specification. It does not replace confirmation of size-specific pressure and temperature ratings, fluid compatibility, or assembly details. Another avoidable issue is selecting by nominal diameter alone while overlooking the connection type or installation bend radius.
Buyers should also avoid assuming that similar hose designations are automatically interchangeable. Standards and product constructions can differ, and a substitute should be evaluated against the equipment requirements and the supplier’s documented data. If the hose is for a safety-critical or high-consequence application, involve the responsible equipment or hydraulic engineer in the approval process.
Quotation terms can depend on hose size, order quantity, requested length, assembly requirements, packaging, and shipping destination. Custom assemblies may also require confirmation of fitting availability and production scheduling. Since minimum order quantities and lead times vary by product and supplier, request current terms for the exact specification rather than relying on a general estimate.
For more comparable quotations, send the same complete specification to each supplier. Include the required standard or designation, size, quantity, bulk-hose or assembly requirement, fittings, length, destination, and any documentation needs. This gives suppliers a clearer basis for confirming availability and identifying any technical differences in their offers.
Hengshui Xinchi Hose Manufacturing Co., Ltd. supplies hydraulic hose products and supports B2B inquiries about product selection and sourcing. Share your required specification, quantity, application conditions, and assembly details so our team can review the request and clarify the product information available for quotation. Final suitability should be confirmed against the equipment requirements and the applicable product datasheet.
SAE100 R2AT is a two-wire-braid hydraulic hose construction that may suit applications requiring this type of reinforcement, provided its documented ratings match the system. Before purchase, confirm the size-specific working pressure, temperature range, fluid compatibility, bend radius, cover requirements, and connection details. These checks provide a more reliable basis for comparing products than the designation alone.
Your next step is to prepare a complete RFQ with the hose size, operating conditions, quantity, delivery requirements, and assembly details. Send that information to Hengshui Xinchi Hose Manufacturing Co., Ltd. for a product and quotation discussion, and review the supplier’s technical documentation before approving the hose for use.
Contact us to discuss your requirements of SAE100 R2AT Hydraulic Hoses. Our experienced sales team can help you identify the options that best suit your needs.