SAE100 R2AT Hydraulic Hoses: Specifications and Selection Guide

SAE100 R2AT hydraulic hose is a high-pressure hose commonly built with an oil-resistant synthetic rubber tube, two braided steel-wire reinforcement layers, and a protective rubber cover. To select one, match its inner diameter, working pressure, temperature range, fluid compatibility, bend radius, and end connections to the machine and operating conditions. The “R2” designation identifies a two-wire-braid construction; actual pressure ratings and dimensions depend on hose size and the manufacturer’s specification. At Hengshui Xinchi Hose Manufacturing Co., Ltd., we recommend confirming the complete operating requirements before requesting a product quotation.

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Key Takeaways

• R2AT hoses use two steel-wire braid reinforcement layers for high-pressure hydraulic service.
• Select by the lowest applicable system limit: pressure, temperature, fluid compatibility, or installation geometry.
• Check the manufacturer’s size-specific working pressure, minimum bend radius, and impulse information rather than relying on a general description.
• Share application and fitting details with your supplier to reduce specification gaps during procurement.

Who This Guide Is For

This guide is for hydraulic equipment manufacturers, maintenance teams, distributors, and purchasing professionals evaluating SAE100 R2AT hose. It is useful when replacing an existing hose, specifying a new assembly, or comparing supplier quotations. The designation alone does not define every product detail, so buyers should review the relevant technical data sheet before approving a hose for service.

We focus on practical specification and sourcing decisions rather than treating one hose construction as suitable for every application. If a machine operates near its pressure or temperature limits, or uses a specialized fluid, confirm suitability with the equipment manufacturer and hose supplier before installation.

What Is SAE100 R2AT Hydraulic Hose?

Construction and function

SAE100 R2AT is a flexible hydraulic hose type commonly specified for conveying hydraulic fluids under pressure. A typical construction has an inner tube designed for compatible hydraulic fluids, two layers of braided high-tensile steel wire, and an outer cover intended to resist exposure such as abrasion, oil, and weather. Exact compounds and construction details can vary by manufacturer, so the product datasheet is the controlling reference for a particular hose.

The two wire braids reinforce the tube against internal pressure while allowing the hose to flex within its specified limits. The cover protects the reinforcement and tube from external conditions, but it does not make the hose immune to cuts, crushing, excessive heat, or chemical attack. Hose selection should account for both internal service and the environment around the installation.

Typical specifications to check

Buyers will commonly encounter R2AT products described by nominal bore, working pressure, temperature range, minimum bend radius, and standard or manufacturer reference. A typical R2AT construction has 2 steel-wire braid layers. Some product specifications list a service temperature range of approximately -40°C to +100°C for particular products and fluids, but this should not be assumed for every hose or application.

Nominal sizes are often stated in inches or metric DN. For example, a buyer may see 1/4 inch (DN6), 3/8 inch (DN10), or 1/2 inch (DN12) sizes. These are nominal designations; confirm the actual inside and outside diameters in the supplier’s dimensional data, especially where space or fitting compatibility is critical.

Match the Hose to the Application

R2AT hoses are used in hydraulic circuits where a two-wire-braid hose is appropriate for the equipment’s specified pressure and operating conditions. Potential settings include mobile machinery, industrial hydraulic equipment, and general hydraulic power systems. These are application categories, not a guarantee that any particular R2AT product is suitable for every machine in those categories.

Start with the equipment documentation or the marking on the hose being replaced. Identify the fluid, normal and peak pressure, temperature range, hose route, and connection details. If the existing hose has failed, investigate the cause—such as abrasion, heat, incorrect routing, or an unsuitable connection—before ordering an identical replacement.

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A Practical Selection Framework

1. Confirm pressure and bore

Record the system’s normal pressure and any documented peaks or pulsations, then compare them with the working-pressure rating for the exact hose size. Do not use a pressure figure for another bore or assume that a hose’s burst rating is its operating rating. If pressure conditions are uncertain, consult the equipment manufacturer or a qualified hydraulic specialist.

2. Check fluid and temperature compatibility

Identify the hydraulic fluid by type and, where available, product specification. Confirm that the tube material is suitable for that fluid and that the full operating temperature range is within the hose supplier’s limits. Consider both the fluid temperature and surrounding environment, since the conditions at the hose route may differ from those at the reservoir.

3. Review routing and bend radius

Measure the installation path and compare it with the manufacturer’s minimum bend radius for the selected size. Avoid sharp bends, twisting, tension, and contact with moving or abrasive components. Where the route is exposed to heat, impact, or repeated movement, describe those conditions when asking a supplier to recommend a suitable construction or protection option.

4. Specify fittings and assembly details

State the end connection type, thread standard, fitting orientation, and required assembly length. Include photographs or drawings when connection identification is uncertain, but do not rely on appearance alone to establish thread compatibility. Confirm whether you are buying hose only or a finished hose assembly, since the required information and inspection steps differ.

Pricing, MOQ, and Lead-Time Considerations

R2AT hose pricing can vary with bore, pressure specification, length, cover requirements, order quantity, and whether fittings or assembly work are included. Minimum order quantities and production or shipping lead times are supplier- and order-specific; we avoid quoting a standard figure without confirming the requested product and destination. For a useful quotation, provide size, quantity, required standard or datasheet, delivery destination, and any packaging or documentation needs.

When comparing offers, check that each supplier is quoting the same construction, size, pressure rating, and end configuration. A lower price may not represent an equivalent product if the technical details differ or are missing. Request written confirmation of the specification and clarify which items are included in the quoted price.

Supplier Evaluation Checklist

• Can the supplier provide a product datasheet with size-specific ratings and dimensions?
• Are material construction, temperature limits, and application restrictions clearly stated?
• Can the supplier confirm fitting details and assembly requirements where applicable?
• Are quotation scope, MOQ, lead time, packaging, and shipping terms transparent?
• Can the supplier explain what information is needed to assess a non-standard application?

At Hengshui Xinchi Hose Manufacturing Co., Ltd., we support B2B buyers evaluating hydraulic rubber hoses by reviewing the requested size, application details, and purchasing requirements. Share the technical specification or existing hose information so we can check the product requirements and advise what details need confirmation. Product availability, customization, and order terms should be confirmed for each inquiry.

Conclusion: Choose by the Complete Operating Specification

SAE100 R2AT is generally a two-steel-wire-braid hydraulic hose, but the designation by itself is not enough to confirm suitability. The right selection depends on size-specific pressure and temperature ratings, fluid compatibility, bend radius, routing conditions, and fitting requirements. Review the technical data for the exact product rather than applying a generic rating to every hose size.

Your next step is to collect the equipment’s pressure and temperature information, identify the fluid and hose size, and document the connection and installation route. Send those details to Hengshui Xinchi Hose Manufacturing Co., Ltd. when requesting a quotation or product review. Clear specifications make supplier comparison more reliable and help ensure the hose being considered fits the intended hydraulic service.

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