Synflex Optimum by Danfoss

Empowering without limitations

Higher performing. More configurations.

Synflex Optimum by Danfoss' thermoplastic hydraulic hoses and fittings empower OEMs to reimagine design. Our system engineered portfolio offers streamlined product configurations that make it easy to find the perfect combination for every application. Our commitment to innovation includes the design and technical support needed to develop more efficient, safe, and productive systems.

Product Series Overview

3TR7/3TR7N (SAE 100R7)

Features:

• UV / Ozone protection: Thermoplastic polyurethane and polyester outer-cover resists ozone, ultraviolet light, and aging.
• Easier routing and installation: Reformulated nonstick cover requires 50% less routing force, improved kink resistance, and compact fittings for improved routing.
• Temperature resistance: Improved hose functionality over a wide temperature range from -40°C (-40°F) to +100°C (212°F).
• Custom thermoforming: Ability to mold into configurations that match system design.
• Higher abrasion resistance: The new TPU and polyester cover increases abrasion resistance by 10%.
• Powerful performance: Lift and handle heavy loads with hose power ranges extending from 1,015 psi to 5,000 psi.
• Chemical resistance: Thermoplastic composition paired with nylon lining prevents absorption of most oils and hydraulic fluids.
• Flexible design: Lightweight hose design drives performance efficiencies, reducing vehicle power requirements.
• Lighter weight: Synthetic reinforced thermoplastic hoses are about 2x lighter than equivalent wire-braided rubber hoses.
• Bonding capabilities: Synflex thermoplastic hoses can be permanently joined without the use of any mechanical devices.
• System cleanliness: Thermoplastic hose will not degrade or create contaminants in filters and valves, helping you maintain a clean system.
• Noise reduction: Special reinforcements on the thermoplastic hoses help reduce machine noise.

3TR8/3TR8N (SAE 100R8)

Features:

• Inner tube: Nylon
• Reinforcement: 2 textile braid
• Cover: Nonstick polyurethane (3TR8 perforated, 3TR8N non-perforated)
• Typical platforms: Air tools, Cooling/misting/dust suppression, Forestry delimber, General construction, General hydraulic, High pressure chemical transfer, Marine steering, Mobile machinery, Utility vehicles, Recreational vehicles, Rescue tools and equipment.

3TR18CT (SAE 100R18)

Features:

• Inner tube: Polyester
• Reinforcement: 2 textile braid
• Cover: Nonstick polyester (3TR18CT perforated)
• Typical platforms: Agriculture, Horticulture, Chemical and gas transfer, Forestry delimber, Forklifts, Freezer applications, General construction, General hydraulics, Lubrication systems, Machine tools and robotics, Portable hydraulic tools.

Fittings

Danfoss offers a range of fittings designed to complement the Synflex Optimum hoses:

• 4TA series: Optimized one-piece fitting crimps directly to Synflex 100R7, 100R8 and 100R18 hoses for a robust and economic connection.
• 1A/Z series (with sleeve): Leverages existing high-volume fittings by adding a sleeve for compatibility with 100R7 and 100R8 hoses.
• 901/902 series: Field attachable, reusable fitting that can be assembled with hand tools, specifically for R7 hose.

Synflex Optimum 4TA Fittings

Designed for efficiency

Over 500+ combinations of terminal ends.

Best-in-class features come standard

• Seamless compatibility: Optimized to work together with Synflex Optimum thermoplastic hydraulic hoses.
• Single piece design: Reduces matching errors during assembly, eliminates brazing failure risks, and lowers assembly time.
• Captive nut: Eliminates weak spots, evenly distributes force during assembly, preventing cracks and leaks.
• Easy assembly: Easier insertion and less force needed to push fitting onto hose.

Designed for ease of use

• Smaller profile: Compact design and smaller profile for easier routing and assembly in tight spaces.
• Easy identification: Part numbers printed on fittings for easy identification.

Designed to last

• Corrosion resistance: Dura-Kote™ plating provides up to 3x the corrosion protection on carbon steel fittings compared to competitive hose fittings, offering up to 1,000 hours of corrosion resistance.

4TA fittings numbering system

A complete nipple part number is constructed as follows:

Product Group (e.g., 4T for one-piece non-skive braided fitting)

Material stock code (e.g., A for inch hex stock or metric equivalent)

Terminal end connection size

Terminal end connection code (e.g., FJ for SAE JIC 37° Female swivel)

Terminal end connecting configuration (e.g., A for 45°, B for 90° standard)

Hose size

Material designation (e.g., C for stainless steel, or zinc plated carbon steel)

Tooling Reference

Danfoss provides a range of tooling for crimping Synflex Optimum hoses and fittings, including:

• ET1000
• ET1001
• ET4000
• ET4001
• ET420
• ET421
• ET425
• ET460
• ET462
• ET465
• ET480
• FT1380
• FT1381
• FT1382
• FT1390

Detailed charts are provided for specific hose series and dash sizes, indicating the required machine, die cage part number, and specific components (collet, spacer ring, etc.) for each configuration.

Chemical Resistance Data

The provided chart serves as a guide for hose material compatibility with various chemicals. It lists resistance ratings (Good, Limited, Poor, Not Tested) for Nylon and Polyester materials against a wide range of chemicals. Final material selection should consider variations in temperature, pressure, and exposure duration.