In mines, hydraulic hoses work under constant abrasion and extreme pressure. Gates' mining page highlights these two conditions and lists spiral, Xpiral and braided hose families for mining.
According to Gates documents, the covers of the hydraulic hoses in this article meet MSHA (US Mine Safety and Health Administration) flame resistance acceptance. Below we summarize what each hose is suited for according to Gates.
Our Gates hoses for mining
- Gates® EFG6K Spiral Wire Hose: 420 bar: In the Gates mining brochure; 420 bar class, for extremely high-pressure, high-impulse applications such as hydrostatic transmissions. MSHA 2G.
- Gates® EFG5K Spiral Wire Hose: 350 bar: In the Gates mining brochure; 350 bar class, tested to 1,000,000 impulse cycles. MSHA 2G.
- Gates® EFG4K Spiral Wire Hose: 280 bar: In the Gates mining brochure; 280 bar class, for high-pressure, high-impulse hydraulic applications. MSHA 2G.
- Gates® 4XH Spiral Wire Hose - EN 856 4SH: EN 856 4SH; in the Gates mining brochure, for extremely high-pressure hydraulic applications. MSHA IC-4/17.
- Gates® 4XP 4-Spiral Wire Hydraulic Hose (EN 856 4SP): EN 856 4SP; in the Gates mining brochure, for extremely high-impulse hydraulic applications. MSHA IC-4/17.
- Gates® G1 Steel Wire Braided Hydraulic Hose (1SN): EN 853 1SN; for medium-pressure hydraulic lines, included in the Gates mining brochure. MSHA-approved cover.
- Gates® MXT™ Wire Braided Hose - SAE 100R16: On Gates' mining page; flexible, braided, meets MSHA flame resistance requirements.
- Gates® MXT-XTP XtraTuff Steel Wire Braided Hydraulic Hose (2SC): The XtraTuff-covered version of MXT; according to Gates, 30 times more abrasion resistant than standard hoses.
- Gates® MXG™ 5K-XTP with XtraTuff™ Plus Cover: Gates: mining and drilling machines (drill rigs); XtraTuff Plus cover, MSHA 2G.
- Gates® MXG4K-XTP XtraTuff Xpiral Hydraulic Hose (280 bar): Gates: rock breakers and drilling (boomer, hammer drill) applications; a flexible alternative to spiral hose.
- Gates® Plant Master™ Hose: According to Gates, for air and water lines in every sector, including mining.
How to choose
When choosing a hose for mining machinery:
- Pressure class: 280 bar for EFG4K, 350 bar for EFG5K and 420 bar for EFG6K; 280 bar for MXG 4K-XTP and 350 bar for MXG 5K-XTP. The working pressure of each size is given in the size chart on the product page.
- Spiral or Xpiral: In high-pressure lines where flexibility is required, Gates recommends the MXG family as an alternative to spiral hoses; MXG 5K-XTP is impulse tested to the same parameters as EFG5K.
- Flame resistance: Gates documents list MSHA 2G for the EFG family and MXG 5K-XTP, and MSHA IC-4/17 for 4XH and 4XP.
- Abrasion: MXG and MXT-XTP hoses have an XtraTuff cover. For EFG4K, EFG5K and EFG6K, Gates also offers an option with a MegaTuff (MTF) cover that provides 300 times more outer cover abrasion resistance per ISO 6945; ask us if you need it.
- Temperature: -40 °C to +121 °C for the EFG and MXG families; -40 °C to +100 °C for 4XH, 4XP, G1 and the MXT family.
Frequently asked questions
What does MSHA acceptance mean?
MSHA is the US Mine Safety and Health Administration. Gates states that its hose covers meet this agency's flame resistance acceptance criteria: MSHA 2G for the EFG family and MXG 5K-XTP, and MSHA IC-4/17 for 4XH and 4XP.
EFG5K or MXG 5K-XTP?
Both are in the 350 bar class. Gates recommends MXG 5K-XTP as an alternative to spiral hoses in high-pressure lines where flexibility is required, and states that it is impulse tested to the same parameters as EFG5K. Let's make the choice together based on the size and the layout of the line.
What is the difference between 4XH and 4XP?
4XH meets EN 856 4SH and 4XP meets EN 856 4SP. Gates recommends 4XH for extremely high-pressure and 4XP for extremely high-impulse hydraulic applications. Both have four-spiral steel wire reinforcement and are tested to 1,000,000 impulse cycles.