SAE 100R2AT Hydraulic Hoses: Specifications, Applications, and Selection Guide

SAE 100R2AT is a high-pressure hydraulic hose construction with a synthetic-rubber tube, two braided steel-wire reinforcement layers, and a protective outer cover. It is commonly selected for hydraulic circuits on mobile and industrial equipment, but the hose is suitable only when its pressure, temperature, fluid compatibility, size, and routing requirements match the application. In this guide, we explain what to check before specifying or sourcing it, including why the hose’s working pressure and bend requirements must be confirmed for each size and product design.

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Key Takeaways

• SAE 100R2AT identifies a two-wire-braid hydraulic hose type; it does not mean that every size has the same pressure rating.
• Check working pressure, temperature, fluid compatibility, inside diameter, and minimum bend radius against the actual operating conditions.
• Confirm the required standard, hose assembly details, and any additional customer or machine requirements with the supplier before ordering.
• Provide a clear application and purchasing specification to obtain a relevant quotation and avoid mismatched products.

Who This Guide Is For

This guide is for hydraulic equipment manufacturers, maintenance teams, distributors, and procurement professionals evaluating SAE 100R2AT hoses. It can help buyers compare product information and prepare a technical inquiry before requesting a quotation. It is not a substitute for equipment-manufacturer requirements, applicable regulations, or the supplier’s product-specific datasheet.

What Is SAE 100R2AT Hydraulic Hose?

Basic construction and function

SAE 100R2AT is a designation used for a hydraulic hose type described under SAE J517. Its typical construction includes an oil-compatible synthetic-rubber inner tube, two braids of high-tensile steel wire, and a synthetic-rubber outer cover. The inner tube carries the hydraulic fluid, the wire reinforcement supports pressure, and the cover helps protect the hose from external conditions.

The “two-wire” description refers to the reinforcement construction, not a universal pressure rating. Maximum working pressure, burst pressure, outside diameter, and minimum bend radius depend on hose size and the specific manufacturer’s design. Buyers should use the current product datasheet for the exact model rather than infer ratings from the SAE type alone.

Typical temperature and size considerations

Many commercial SAE 100R2AT products list a fluid-temperature operating range of approximately -40°C to +100°C, but the permitted range can vary by product, fluid, and operating conditions. Check whether the stated rating applies to continuous service, intermittent exposure, or a particular fluid. If the application falls outside the published limits, ask the supplier or equipment manufacturer to review the specification before selection.

Products are commonly offered in nominal inside diameters from 1/4 inch to 2 inches, although available sizes depend on the supplier and product range. This is a market-typical range, not a guarantee that every manufacturer stocks every size. Match the hose ID to the system design and connection requirements, and confirm dimensions and tolerances on the relevant datasheet.

Applications and Material Options

SAE 100R2AT hoses are used in hydraulic systems where a two-wire-braid construction meets the required pressure and installation conditions. Common application areas include construction and agricultural machinery, industrial equipment, material-handling systems, and hydraulic power units. Suitability still depends on the equipment specification, pressure peaks, temperature, fluid, and exposure to abrasion or weather.

Hose materials and cover options are selected according to the conditions the hose will encounter. A standard synthetic-rubber cover may be appropriate for many general applications, while some installations call for additional abrasion or environmental protection. Do not assume that a cover is compatible with a particular chemical, cleaning agent, or outdoor exposure without checking product documentation.

How to Select SAE 100R2AT Hose

Step 1: Define operating pressure

Record the system’s normal working pressure and any known pressure surges or pulses. The selected hose’s rated working pressure must meet the application requirements for the relevant size, and the complete assembly must also be suitable. Never use burst pressure as the normal operating limit; ask the supplier to confirm the applicable working-pressure rating.

Step 2: Check temperature and fluid compatibility

Identify both the hydraulic fluid and its operating temperature range, including expected start-up or ambient conditions. Confirm compatibility with the tube material as well as with the hose assembly components, such as fittings and seals. If the fluid formulation or temperature is unusual, provide its details to the supplier instead of relying on a general oil-resistance description.

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Step 3: Confirm size, routing, and connections

Specify the required inside diameter, hose length, fitting type, end orientation, and connection thread or interface. Check the hose’s minimum bend radius and allow enough routing space to prevent kinking, twisting, or tension at the fittings. If replacing an existing assembly, verify the connection details and dimensions rather than relying on appearance alone.

Step 4: Evaluate the external environment

Consider abrasion, vibration, exposure to weather, contact with chemicals, and proximity to heat sources. These factors may affect cover choice, routing, or the need for protective sleeves and clamps. Where the hose passes through a high-wear area, discuss the environment and protection requirements with the supplier before finalizing the specification.

SAE 100R2AT Selection Checklist

Pricing, MOQ, and Lead Time

Pricing for SAE 100R2AT hose depends on factors such as size, order quantity, construction details, cover requirements, and whether the purchase is for bulk hose or finished assemblies. Fittings, assembly work, packaging, and requested documentation can also affect the quotation. Provide a complete specification so suppliers can compare like-for-like products rather than quoting different configurations.

Minimum order quantity and lead time are supplier- and order-specific, so they should be confirmed at the inquiry stage. Availability may differ between standard sizes and customized assemblies, and shipping arrangements can affect the overall schedule. Ask the supplier to state the offered quantity, production or dispatch timing, packaging, and any quotation assumptions in writing.

Supplier Evaluation and Common Mistakes

Questions to ask before placing an order

Ask for the product datasheet showing the exact hose size, working pressure, temperature range, dimensions, and bend radius. Confirm how the supplier identifies the product and whether the offered construction meets your required standard and equipment specification. For assembled hoses, request confirmation of fitting materials, connection details, length measurement method, and any inspection or documentation requirements.

One common mistake is treating SAE 100R2AT and another hose designation as automatically interchangeable. Similar descriptions do not establish that pressure ratings, dimensions, or performance requirements are identical, so review the relevant standards and product data before substitution. Other avoidable errors include overlooking pressure surges, specifying an incorrect fitting, and ignoring the hose’s minimum bend radius.

Working with Hengshui Xinchi Hose Manufacturing Co., Ltd.

At Hengshui Xinchi Hose Manufacturing Co., Ltd., we supply rubber hose products and support B2B buyers assessing hydraulic hose requirements. To help us review an SAE 100R2AT inquiry, share the required size, quantity, operating pressure, temperature, fluid, hose length, fittings, and destination. We can then confirm which product information and supply details are relevant to the requested configuration.

For repeat purchasing, buyers can also identify any requirements for packaging, labeling, documentation, or delivery planning in the initial inquiry. These details help align the quotation with the intended order and reduce avoidable clarification during procurement. Product suitability should be confirmed against the application and the exact product documentation before purchase.

Conclusion: Is SAE 100R2AT Right for Your Application?

SAE 100R2AT can be a suitable choice when its two-wire-braid construction and product-specific ratings meet the hydraulic system’s pressure, temperature, fluid, size, and routing requirements. The designation alone is not enough to confirm compatibility, and ratings should never be assumed to be identical across sizes or suppliers. Start by documenting the operating conditions, then compare them with the datasheet for the exact hose and assembly.

For your next step, prepare the selection checklist above and send it with your requested quantity and delivery destination to your supplier. Ask for written confirmation of the offered hose specification, working pressure, temperature range, fittings, MOQ, and lead time. Hengshui Xinchi Hose Manufacturing Co., Ltd. welcomes qualified B2B inquiries for SAE 100R2AT hydraulic hose supply and product information.

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