SAE100 R1AT is a single-wire-braid hydraulic hose for conveying compatible hydraulic fluids in medium-pressure systems. Its construction typically combines an oil-resistant synthetic-rubber tube, one high-tensile steel-wire braid, and a protective rubber cover. To select it safely, match the hose’s size, working pressure, temperature rating, fluid compatibility, fittings, and routing conditions to the equipment—not just the SAE designation. Pressure and temperature limits vary by hose size and manufacturer, so confirm the current product data sheet before ordering or installation.
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This guide is for equipment manufacturers, maintenance teams, distributors, and industrial buyers sourcing hydraulic hose for new builds or replacement. It explains what the SAE100 R1AT designation tells you, where this hose may be suitable, and what information to confirm before purchasing. It is a selection aid, not a substitute for the equipment manufacturer’s requirements or the hose manufacturer’s product data.
SAE100 R1AT is commonly specified for hydraulic lines that carry pressurized fluid between components such as pumps, valves, cylinders, and motors. The inner tube is selected for compatibility with the intended fluid, while the steel-wire reinforcement helps the hose contain pressure. The outer cover protects the reinforcement and tube from the surrounding environment, with its properties depending on the particular product construction.
The “R1” designation identifies a single-wire-braid hose type in the SAE J517 family. “AT” is associated with the hose cover configuration; buyers should check the applicable standard and manufacturer’s construction details rather than infer every dimension from the name alone. The designation does not, by itself, specify a hose’s size, fitting, or allowable pressure in every application.
One defining construction detail is one steel-wire braid. Other specifications are product- and size-dependent. For example, working pressure can change substantially across nominal diameters, so a rating for one size should never be applied to another.
| Specification | What to verify | Why it matters |
|---|---|---|
| Nominal size and inside diameter | Hose size, actual dimensions, and connection requirements | Correct flow, fit, and assembly compatibility |
| Working pressure | Manufacturer’s rating for the exact hose diameter | Must meet or exceed the system’s design requirements |
| Temperature | Allowable fluid and ambient temperature ranges | Heat can affect hose life and pressure capability |
| Fluid compatibility | Tube material suitability for the specified fluid | Incompatible fluids may damage the tube or reduce service life |
| Minimum bend radius | Published limit for the specific size and construction | Tight bends can stress or damage the hose |
Some product ranges publish temperature limits such as -40°C to +100°C for particular hydraulic-fluid applications, but this is not a universal rating for every SAE100 R1AT hose or fluid. The permitted range may be lower for certain media, operating conditions, or hose constructions. Use the selected manufacturer’s data sheet to confirm both the fluid and ambient limits.
SAE100 R1AT may be used in hydraulic circuits on industrial machinery, agricultural equipment, construction equipment, and general-purpose hydraulic systems when the hose ratings match the service conditions. Typical uses include connections to hydraulic actuators and fluid-power components. The right choice depends on pressure cycles, temperature, vibration, exposure, and installation geometry as well as the application category.
First identify the fluid, including any additives or water content, and confirm that the tube material is suitable. Next, establish the system’s maximum operating pressure and any pressure surges or pulsations. A line that operates normally below its rating may still be unsuitable if the system produces peaks that exceed the hose or fitting limits.
Review the routing for movement, abrasion, hot surfaces, and contact with chemicals or weather. A protective cover may help with specified environmental exposure, but it should not be treated as protection against every hazard. Where abrasion, heat, or chemical exposure is significant, discuss the conditions with the hose supplier and consider an appropriate cover or protective sleeve.
Record normal and maximum system pressure, including known transient conditions, and compare them with the hose’s published working-pressure rating. Check the ratings of the complete assembly, including fittings and attachment methods, because the assembly is limited by its components. Confirm operating and ambient temperatures rather than relying on a general product-family description.
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Use equipment drawings, the existing assembly specification, or engineering guidance to identify the required inside diameter and length. Avoid choosing a smaller hose simply because it fits the available space; undersizing can affect flow and system performance. Check the minimum bend radius and allow for movement, installation tolerances, and a route that avoids kinking or twisting.
Identify fitting type, thread or connection standard, orientation, and end configuration. A correctly selected hose can still fail to connect or seal if the fitting specification is incomplete. For replacement orders, provide photographs and measurements as supporting information, but do not rely on appearance alone to identify pressure ratings or compatibility.
SAE100 R1AT is often compared with EN 853 1SN, but buyers should not assume that the designations guarantee identical dimensions, pressure ratings, or performance. Compare the specific manufacturer’s data for the exact size, including working pressure, burst pressure where published, temperature limits, and bend radius. If a project mandates a particular standard, request documentation showing the offered product’s stated compliance rather than relying on a verbal equivalence.
Pricing can depend on hose diameter, construction, order quantity, length, packaging, and any required fittings or custom assemblies. Minimum order quantities and lead times vary with product availability, production planning, and destination. Buyers can obtain a more useful quotation by specifying size, requested standard, quantity, delivery location, and whether they need hose only or assembled hoses.
For procurement planning, ask whether the quoted lead time covers production, inspection, packing, and dispatch, and clarify how substitutions will be handled. If a project has a fixed approval process, request technical documents early so that specification review does not delay purchasing. No single price or lead-time estimate applies across all sizes and order configurations.
One frequent mistake is selecting by hose appearance or nominal size while overlooking pressure and fitting details. Another is treating burst pressure as an allowable operating pressure; buyers should use the manufacturer’s stated working-pressure rating and applicable engineering requirements. Ignoring bend radius, abrasion, or temperature can also lead to a poor installation even when the hose designation appears correct.
A further risk is assuming that all hoses marked SAE100 R1AT have identical performance. Product dimensions and ratings may vary, so purchasing teams should approve by documented specification and not by designation alone. For critical or unusual service, request a technical review before production or installation.
As a rubber products supplier, XINCHI can help buyers organize the information needed to specify SAE100 R1AT hydraulic hose and assess a quotation. Share your required size, operating pressure, fluid, temperature range, length, connection details, order quantity, and destination. This allows the product and supply requirements to be reviewed against the intended application before an order is finalized.
For a quotation or technical discussion, contact XINCHI with the equipment specification or replacement-hose details. Ask for the applicable product data sheet and confirm any required documents, packaging, MOQ, and lead time. Clear requirements at the inquiry stage make it easier to compare offers and reduce the risk of ordering an unsuitable hose.
SAE100 R1AT is a single-steel-wire-braid hydraulic hose type commonly used in medium-pressure applications, but the designation alone is not enough to select a product. Confirm the exact hose size, working pressure, temperature and fluid limits, bend radius, routing conditions, and fittings using manufacturer documentation. The practical next step is to send those requirements to your supplier and request a specification-matched quotation before purchasing or installation.
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