power washer 4000 psi for sale

What Is Actually Available at 4,000 PSI?

No exact 4,000 PSI model is verified in the product information supplied for this page. The available products listed below cover published configurations from 500 to 1,500 bar, or 7,250 to 21,750 PSI.

That difference changes the application, equipment requirements, and operating risk. All three product groups fall within the 6,000–25,000 PSI range that the OSHA Technical Manual calls high-pressure water jetting. This work uses a pressure pump with a specialized lance and nozzle assembly and requires professional controls.

Do not treat a 7,250–21,750 PSI machine as a substitute for a 4,000 PSI washer unless the manufacturer confirms a stable 4,000 PSI operating point, the corresponding flow, the control method, and the ratings of every downstream component. The published product pages do not establish that capability.

Start With the Cleaning Job, Then Match PSI and GPM

PSI affects how concentrated the water jet can be at the target. GPM affects how quickly the system rinses and carries loosened material away. For broad washdown and loose contamination, useful flow can matter more than simply moving to the highest pressure. More strongly bonded marine growth, rust, or coatings may need greater jet intensity, but that also raises the risk of damaging the substrate or coating that should remain.

Compare pressure and flow at the same operating point. The nozzle, pump speed, water supply, hose length, fittings, and power source all affect the result at the gun. Start with the surface and contaminant, set the required finish, and test the lowest practical working point on a representative area. After pressure is sufficient to break the bond, flow becomes the main factor in carrying debris away and completing the area efficiently.

Available Marine High-Pressure Systems

WHALE 1500N offshore-vessel water blasting machine in an open wheeled frame.

22000psi Offshore Vessels Water Blasting Machine

The WHALE 1500N is an electric, wheeled marine water-blasting system rated at a maximum pressure of 1,500 bar (21,750 PSI) and a maximum flow of 18.5 L/min (4.9 US GPM) in its primary specification set.

Core specifications

• ModeloWHALE 1500N
• Presión máxima1,500 bar / 21,750 PSI
• Caudal máximo18.5 L/min / 4.9 US GPM
• Motor45 kW, 440 V, 60 Hz, 1,740 rpm
• Conducircurved-tooth timing belt and pulley, 1.72:1
• Included line information15 m outlet hose and 3 m inlet line
• Net weight720 kg / 1,587 lb
• Product size1,550 × 800 × 1,220 mm / approximately 61.0 × 31.5 × 48.0 in
• Configuration noteThe final configuration must be locked in the quotation: a second specification set pairs 21 L/min with a 50 kW motor at 1,000 rpm. Use the confirmed data sheet for power, water, and productivity planning.

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Marine UHP Cleaner 22000Psi series with a stainless steel tubular frame and wheeled red base.

Limpiador marino UHP 22000Psi

This stainless-steel-covered electric series offers two published working points for professional marine cleaning. Both models list 20 L/min (5.28 US GPM), with pressure and motor power increasing between the two configurations.

• FSE-20110Pressure: 1,100 bar / 15,954 PSI; Flow: 20 L/min / 5.28 US GPM; Motor power: 37 kW / 49.6 hp; Voltage/frequency: 380 V / 50 Hz or 440 V / 60 Hz; Weight: 650 kg / 1,433 lb
• FSE-20150Pressure: 1,500 bar / 21,750 PSI; Flow: 20 L/min / 5.28 US GPM; Motor power: 45 kW / 60.3 hp; Voltage/frequency: 380 V / 50 Hz or 440 V / 60 Hz; Weight: 720 kg / 1,587 lb
• Series size and constructionBoth configurations have a size of 1,650 × 950 × 1,220 mm, approximately 65.0 × 37.4 × 48.0 inches. The series uses a stainless steel pump head, ceramic plungers, and a stainless steel cover.

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Marine High Pressure Washer 11600Psi series with a 304 stainless steel cover and four-wheel chassis.

Lavadora de alta presión marina 11600Psi

This three-model electric series covers 500, 600, and 800 bar for marine cleaning tasks. The published specifications combine a stainless steel pump head and ceramic plungers with a 304 stainless steel cover and a four-wheel layout.

• EHF1850Pressure: 500 bar / 7,250 PSI; Flow: 18 L/min / 4.75 US GPM; Motor power: 15 kW / 20 hp; Voltage/frequency: 380 V / 50 Hz or 440 V / 60 Hz; Weight: 275 kg / 606 lb
• EHF2360Pressure: 600 bar / 8,700 PSI; Flow: 23 L/min / 6 US GPM; Motor power: 26 kW / 34.87 hp; Voltage/frequency: 380 V / 50 Hz or 440 V / 60 Hz; Weight: 295 kg / 650 lb
• EHF2080Pressure: 800 bar / 11,600 PSI; Flow: 20 L/min / 5 US GPM; Motor power: 30 kW / 40 hp; Voltage/frequency: 380 V / 50 Hz or 440 V / 60 Hz; Weight: 365 kg / 805 lb
• Machine sizeThe published machine size is 1,080 × 640 × 1,090 mm, approximately 42.5 × 25.2 × 42.9 inches.

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Choose the Pressure Range That Fits the Work

Begin with the 500–800 bar EHF series for marine washdown and removal trials where 18–23 L/min of flow can carry away algae, barnacles, loose rust, and other released debris. Within this group, the 600 bar EHF2360 provides the highest listed flow for faster rinsing, while the 800 bar EHF2080 concentrates more jet force for deposits that remain bonded after a lower-pressure trial.

Move to the 1,100 bar ESF-20110 when a representative test shows that 500–800 bar does not reach the required removal standard. Its 20 L/min working point retains substantial rinsing flow while increasing impact, which can help with more tenacious marine buildup or corrosion. The higher pressure also increases reaction force, component loading, and the chance of removing sound coating or damaging a vulnerable substrate.

Reserve the 1,500 bar WHALE 1500N or ESF-20150 for demanding water-blasting work that has been qualified at that pressure. OSHA notes that water jetting in this pressure range can remove loose paint and rust, while tightly bonded paint, rust, or mill scale may still require a different process or abrasive-assisted method. Pressure alone does not guarantee the required surface preparation result.

Choose the lowest working point that passes a representative surface test, then use flow, nozzle selection, and work method to reach the required production rate. This sequence limits unnecessary surface risk and power demand while keeping the selection tied to a measurable cleaning result.

Three Site Conditions That Change the Configuration

Electrical service: The available 380 V / 50 Hz and 440 V / 60 Hz options require a site-specific electrical review. Phase, full-load current, connection method, circuit protection, grounding, and any required local compliance documents must be set before the motor and control package are finalized.

Water and pressure train: The inlet supply must sustain the selected flow, and every hose, fitting, valve, gauge, gun, lance, nozzle holder, and nozzle must be rated for the operating pressure. An undersupplied pump can cavitate; one low-rated high-pressure component limits the entire assembly.

Work controls: These pressure levels require trained operators, a controlled work area, suitable protective equipment, and containment for the removed material and wastewater. A high-pressure leak must never be checked by hand; a water-jet injection injury requires emergency medical evaluation even when the skin wound looks small.

Build a Quote Around the Required Working Point

Pricing depends on the verified operating point and the complete delivery scope. No public price is listed for these systems, so the quotation should identify the exact model, included equipment, electrical configuration, shipping terms, and validity period.

Send four groups of information for an accurate quote:

• The surface, coating, contaminant, required finish, and production rate
• Target pressure and flow, daily operating hours, available electrical service, and water supply
• Required hose length, gun or lance, nozzles, filtration, controls, testing documents, and spare parts
• Delivery city, state, province, or region, country, and requested delivery date