50:1 Air Operated Grease Pump｜High Pressure｜Follow-Plate｜Fits 20L/200L Drums

The 50:1 ratio air-operated grease pump is an industrial-grade high-pressure grease delivery equipment powered by compressed air and designed with 50-time high-booster plunger structure. Specially built for No.0~3 high-viscosity grease, it provides short and long pump tube lengths with dedicated drum cap and follow-pressure plate, perfectly fitting 20L and 200L standard grease drums. It is widely used in centralized lubrication systems, engineering machinery fleets, mining port equipment, oilfield drilling, heavy fleet maintenance and other scenarios, serving as the core power unit for high-pressure, stable and efficient high-viscosity grease delivery.

This product delivers outstanding core values: 50:1 ultra-high pressure delivery with output up to 4000~4500psi, easily handling No.0~3 full-range high-viscosity grease for long-distance and high-pressure lubrication points; dual-length + follow-plate design covering 20L/200L drums with minimal residue and no air suction; pure air-driven safety with no motor or circuit, stable in explosive-proof, oily, dusty and harsh environments; full-metal durable structure with stainless steel/aluminum alloy, ceramic plunger and wear-resistant seals for long service life; super easy installation with drum-cap fixed and follow-plate design, ready to work upon air connection with no complex debugging and extremely low maintenance cost.

Core Technical Parameters

Drive mode: compressed air powered, compatible with standard air supply in factories, construction sites, mines and repair shops. Working pressure: 0.6~0.8 MPa (87~115 psi), complying with universal industrial air standards. Compression ratio: 50:1 high-booster design, output pressure 4000~4500 psi (276~310 bar) for stable high-pressure delivery. Flow rate: 4~8 L/min, varies with air pressure and medium viscosity, supporting multi-point simultaneous lubrication. Applicable media: No.0~3 high-viscosity grease for all industrial and engineering machinery uses. Air inlet: 1/4" NPT / G1/4 universal pneumatic thread; oil outlet: 3/8" NPT / G3/8 thread, directly connects to centralized lubrication lines or high-pressure guns. Pump tube lengths: short (20L), long (200L); installation: drum-cap fixed + follow-plate, closely fitting grease surface to avoid residue and dry pumping. Material: stainless steel/aluminum alloy + wear-resistant ceramic plunger, corrosion-resistant, wear-resistant and high-pressure sealed. Net weight: approx. 6~8 kg (varies by length), support hanging and vertical installation. Operating temperature: -10℃~60℃, cold and heat resistant for wide regional adaptation. Built-in pressure safety valve for automatic overpressure relief to protect lines and pump.

Core Functions & Advantages

Core Functions

50:1 High-Booster High-Pressure Pumping: plunger-type structure amplifies air pressure by 50 times for super high-pressure power, smoothly delivering No.0~3 high-viscosity grease stably even in low temperature.Follow-Plate Anti-Residue & Anti-Dry Pump: dedicated grease follow-plate keeps close contact with grease surface and descends with consumption, eliminating bottom residue and air suction for continuous high-pressure supply.Dual-Length Precise Drum Adaptation: two tube lengths perfectly match 20L/200L standard grease drums, ready to use without modification, covering mainstream drum sizes with one unit.Pure Air-Driven Explosion-Proof Safety: no motor, no circuit, no spark, safe for mines, oilfields, chemical plants and other harsh environments with high explosion-proof demand.Built-In Safety Pressure Relief: automatic relief when system overpressure, effectively protecting pump, lines, fittings and downstream equipment from damage.Full-Metal High-Strength Durable Structure: stainless steel/aluminum alloy body + ceramic plunger + high-pressure wear-resistant seals, corrosion-resistant, wear-resistant and shockproof for long-term heavy-duty industrial use.

Product Comparative Advantages

Compared with ordinary 30:1 air-operated grease pumps, this 50:1 high-booster pump has significant strengths: higher pressure – 30:1 max ~2400psi vs 50:1 up to 4500psi for more stable high pressure; larger flow – 30:1 only 2~4 L/min vs 50:1 upgraded to 4~8 L/min for multi-point simultaneous operation; wider media compatibility – 30:1 only for No.0~2 grease and easy jamming in low temp vs 50:1 stably delivering No.0~3 high-viscosity grease smoothly in cold; better drum adaptation – 30:1 single drum size with high residue vs 50:1 dual-length + follow-plate for 20L/200L universal use with residue <5%; higher durability – 30:1 ordinary seals with short life vs 50:1 ceramic plunger + wear-resistant seals with over 50% longer life.

Application Scenarios

Industrial Centralized Lubrication Systems: Production lines of automobiles, engineering machinery, agricultural machinery connecting to lubrication distributors for automatic multi-point grease supply to machine tools, bearings, gears and guides; large equipment lubrication in metallurgy, papermaking, electric power for unattended automatic maintenance.Engineering Machinery & Mining Equipment: Excavators, loaders, cranes, rollers and other heavy equipment for stable high-pressure supply to chassis, swing mechanisms, travel mechanisms; mining and port machinery for continuous high-pressure lubrication under dusty, humid and explosive-proof conditions.Fleet & Logistics Enterprises: Heavy trucks, dump trucks, semi-trailer fleets connecting to mobile lubrication units for fast batch grease filling; bus and passenger fleets with centralized systems for automatic chassis and wheel hub lubrication.Special Industries: Oilfield and drilling equipment for explosion-proof lubrication with safe air-driven no-spark design; ship and port equipment with corrosion-resistant structure for stable long-term operation in high humidity and salt fog.

Target Customer Groups

Core B-end Customers: Equipment manufacturers including automotive, engineering machinery and agricultural machinery needing centralized lubrication systems; heavy industries such as metallurgy, papermaking, electric power and mining with heavy maintenance and harsh environments; engineering and mining enterprises with large heavy equipment needing efficient high-pressure lubrication; logistics and transportation enterprises with heavy fleets needing batch fast lubrication.Service B-end Customers: Centralized lubrication system integrators providing design and installation for industrial enterprises needing reliable power pumps; equipment MRO service providers needing efficient and durable lubrication equipment; grease distributors offering supporting equipment to enhance product value.Professional Engineering Users: Mining and port equipment maintenance teams needing high-pressure lubrication equipment stable in harsh environments; engineering machinery repair shops needing high-flow high-efficiency grease pumps for heavy equipment maintenance.

Selling Points

50:1 Ultra Boost, Pumps Any Grease Easily: 4500psi high pressure, works for No.0~3 grease and cold thick oil, no problem for long pipelines.Follow-Plate Cuts Residue Below 5%: plate moves with grease, no air suction, no waste, saves huge grease cost yearly.Dual Length Fits 20L/200L Drums: short for 20L, long for 200L, one pump for all drums.Air-Powered No Motor, Explosion-Proof Safe: no circuit, no spark, ideal for mines, oil fields and oily workshops.High Flow Multi-Point, 3x Faster: 4~8L/min flow supports multiple lubrication points at once.Ceramic Plunger + Full Metal, 50% Longer Life: corrosion and wear resistant, heavy-duty built for job sites.

Product Packaging & Accessory List

Standard package includes: 1×50:1 air-operated grease pump (2 lengths optional), 1×grease follow-plate, 1×drum cap adapter, 1×1/4" NPT air inlet fitting, 1×3/8" NPT grease outlet fitting, 1×safety relief valve assembly, 1×product manual.Optional accessories: 5m/10m high-pressure grease hose, centralized lubrication distributors, wall-mounted brackets, grease metering guns.

Product Value Summary

The 50:1 high-ratio air-operated grease pump is a core power equipment integrating high pressure, high efficiency, high adaptation and high durability in industrial lubrication. It solves difficulties of high-viscosity grease, low temperature and long-distance delivery with 50x super boost, achieves ultra-low residue and zero waste with follow-plate, covers mainstream drums with dual-length design, and fundamentally solves pain points of insufficient pressure, small flow, high residue and environment limits of traditional grease pumps. For users of centralized lubrication systems, heavy engineering machinery, mining equipment and logistics fleets, this product is not only the power core of lubrication systems but also a key solution to reduce costs, improve efficiency, extend equipment life and upgrade maintenance standardization, making it the best choice for high-pressure grease delivery and heavy equipment maintenance.