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STONE

STONE is a manufacturer of hydraulic power unit components and replacement parts, with a product line that includes reservoir tanks, DC motors, coils, and valve kits. The brand is recognized in the industrial hydraulics sector for supplying standardized components that integrate into lift systems, material handling equipment, and mobile hydraulic applications. STONE products are designed to meet common industry specifications for reservoir capacities, motor voltages, and mounting configurations, making them suitable for maintenance, repair, and overhaul (MRO) operations as well as new equipment builds.

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About STONE

STONE is a manufacturer of hydraulic power unit components and replacement parts, with a product line that includes reservoir tanks, DC motors, coils, and valve kits. The brand is recognized in the industrial hydraulics sector for supplying standardized components that integrate into lift systems, material handling equipment, and mobile hydraulic applications. STONE products are designed to meet common industry specifications for reservoir capacities, motor voltages, and mounting configurations, making them suitable for maintenance, repair, and overhaul (MRO) operations as well as new equipment builds.

3G Electric stocks a range of STONE hydraulic power unit reservoirs, including square and round tanks in steel and plastic, with capacities from 2 quarts to 3 gallons. These reservoirs are available as tank kits (e.g., KR46, KR53, KR50, KR12) that include necessary fittings for integration into hydraulic systems. The reservoirs feature standardized overall lengths (120 mm or 170 mm) and are constructed to withstand typical hydraulic fluid pressures and environmental conditions. Additionally, 3G Electric supplies STONE hydraulic lift DC motors, such as the KMD1 and KMP2 models, which operate at 12V DC with nameplate speeds up to 3000 RPM and shaft diameters of 1/2 inch. These motors are designed for CWSE rotation and are commonly used in scissor lifts, dump trailers, and other mobile equipment.

For replacement and repair, 3G Electric offers STONE replacement coils (EF-1082) and valve kits (KC07), which are critical for maintaining solenoid-operated directional control valves in hydraulic power units. The coils are engineered to match original specifications for voltage and mounting, while the valve kits include seals and components for refurbishing distributor valves. By providing these parts, 3G Electric supports the lifecycle management of STONE hydraulic systems, enabling engineers and maintenance teams to source components without custom fabrication. The availability of multiple reservoir configurations and motor options allows for precise matching to existing system requirements, reducing downtime during repairs or upgrades.

Common Applications

  • Mobile scissor lifts — STONE KMD1 or KMP2 DC motors power hydraulic lift actuators in vehicle-mounted platforms.
  • Dump trailer hydraulics — STONE KR46 steel reservoir tanks provide fluid storage for single-acting cylinder systems.
  • Industrial press maintenance — STONE KC07 valve kits refurbish directional control valves in hydraulic press power units.
  • Agricultural equipment — STONE KR53 plastic reservoirs resist corrosion in outdoor hydraulic systems for tractors and implements.
  • Material handling carts — STONE EF-1082 replacement coils restore solenoid valve function in battery-powered hydraulic units.
  • Small hydraulic power packs — STONE KR50 1-gallon tanks serve compact power units for workshop lifts and jacks.

Frequently asked questions

Common questions about STONE from 3G Electric.

What reservoir capacities are available for STONE hydraulic power unit tanks from 3G Electric?

3G Electric stocks STONE reservoir tanks in capacities ranging from 2 quarts (KR12) to 3 gallons (KR53). Specific models include the 1-gallon KR50, 2.5-gallon KR46, and 3-gallon KR53. These tanks are available in square or round shapes and are constructed from either steel or plastic, depending on the model. The reservoirs are designed as tank kits, meaning they come with necessary mounting and plumbing provisions for integration into hydraulic power units.

What are the specifications of STONE hydraulic lift DC motors available through 3G Electric?

3G Electric offers STONE hydraulic lift DC motors such as the KMD1 and KMP2. The KMD1 has a 7-inch overall length, 1/2-inch shaft diameter, and operates at 12V DC with CWSE rotation. The KMP2 has an 11 1/16-inch overall length, 1/2-inch shaft diameter, 12V DC voltage, and a nameplate speed of 3000 RPM. Both motors are designed for use in hydraulic lift systems and are compatible with standard mounting configurations.

Does 3G Electric carry STONE replacement coils and valve kits for hydraulic power units?

Yes, 3G Electric stocks STONE replacement coils (MPN EF-1082) and valve kits (MPN KC07). The EF-1082 coil is a direct replacement for solenoid-operated valves in STONE hydraulic power units. The KC07 valve kit is a distributor valve kit that includes components for refurbishing valve assemblies. These parts are intended for maintenance and repair of existing STONE hydraulic systems.

What materials are used in STONE reservoir tanks supplied by 3G Electric?

STONE reservoir tanks from 3G Electric are available in steel or plastic. For example, the KR46 (2.5-gallon) and KR12 (2-quart) models are steel, while the KR50 (1-gallon) and KR53 (3-gallon) models are plastic. The choice of material affects weight, corrosion resistance, and compatibility with hydraulic fluids. Steel tanks offer durability, while plastic tanks provide lighter weight and resistance to certain chemicals.

Are STONE hydraulic components from 3G Electric compatible with standard industrial hydraulic systems?

STONE components supplied by 3G Electric are designed to meet common industry standards for hydraulic power units. The reservoirs feature standardized overall lengths (120 mm or 170 mm) and mounting patterns. The DC motors operate at 12V DC with standard shaft diameters and rotation directions. These specifications allow integration into many existing hydraulic systems used in material handling, mobile equipment, and industrial machinery, though verification of specific system requirements is recommended.

Does 3G Electric supply STONE products?

Yes — 3G Electric (S) Pte. Ltd. supplies STONE products. We stock the STONE catalog and supply genuine factory-original products with full manufacturer warranty and technical support.