Confirm the hose class, fittings and complete assembly specification together; one component cannot compensate for an unsuitable selection elsewhere. RHPL offers hydraulic hose in two forms for South African buyers: built into assemblies and kits, or as bulk hose for workshops that crimp locally. In both cases the hose maker, series and standard are named in the quotation, so your engineer checks the datasheet rather than our word.
Hose classes we supply
| Class | Construction | Application to confirm |
|---|---|---|
| SAE 100 R1 / EN 853 1SN | One steel-wire braid | Pilot lines, low-pressure returns, attachments |
| SAE 100 R2 / EN 853 2SN | Two steel-wire braids | General mobile hydraulics, loaders, utility vehicles |
| EN 856 4SP | Four spiral wires | Medium-high pressure on excavators and drills |
| EN 856 4SH | Four heavy spiral wires | High-impulse circuits on large trucks and shovels |
| SAE 100 R13 / R15 | Multi-spiral, constant pressure by size | Hoist, steering and main circuits on ultra-class machines |
| Thermoplastic (R7/R8 type) | Polymer core, fibre or wire reinforcement | Lubrication, grease and low-volume lines |
The table provides application guidance; it does not describe observed South African purchasing patterns. The working pressure for each size must be checked against the selected hose maker’s datasheet and confirmed for the application.
Temperature and cover guidance for South African conditions
South Africa's mining belts are not one climate. The guidance below is general; the final choice follows the machine maker's circuit requirements and your engineer's approval.
- Northern Cape pits. Summer ambient heat, hot oil and sun on exposed hoses push the upper temperature limit. We check the hose's rated maximum against your oil temperature, not the air temperature.
- Highveld coal and Bushveld open pits. Frost on winter mornings stiffens covers on parked machines. For exposed hoses we confirm the low-temperature rating and avoid tight routing that cracks a cold cover at first movement.
- Underground PGM, chrome and gold sections. Confirm temperature, water exposure, mud and abrasion for the actual position. Cover selection supplements the required pressure, temperature and fluid compatibility; it does not replace them.
- Underground coal and other sections where the mine requires it. Fire-resistant (MSHA-type) cover hose is available on request. RHPL holds no MSHA approval or certificate; acceptance follows the mine's own specification.
Bulk hose for South African hose workshops
A workshop that crimps locally can request a quotation for additional hose supply. Select sizes and quantities from your own requirements rather than assuming a standard stock list. RHPL can quote:
- Bulk lengths of braided and spiral hose by size and series, with the maker's datasheet.
- Matching ferrules and fittings for the same hose series, so crimp data stays consistent.
- Part-built assemblies (one end crimped, one end loose) where the workshop finishes the length locally.
Workshops that buy for resale should read the dealer and trade supply page. The workshop holds and owns its stock; RHPL holds none in South Africa.
Matching hose and fitting
Hose and fitting are one system. Do not assume that ferrules intended for one hose series are compatible with another. We quote hose and ferrule from matched series and crimp to the fitting maker's data. If you crimp locally, tell us which ferrule system you use so that we quote compatible hose.
What to send
Hose class or standard (from the layline printed on the old hose), inside diameter or dash size, length per piece or total metres, working pressure if known, oil type and temperature, and the environment: open pit, underground, plant or workshop stock.