MTC-3000 mobile fuel polishing system — cart-mounted 26 GPM portable diesel tank cleaner with mechanical water separator, 3/4 HP rotary vane pump, LG-X 3000 inline magnetic conditioner, multi-stage fine filter with pressure gauge, 1.5-inch cam and groove inlet, and spill containment tray
Fuel Polishing System
1,560 GPH Flow | AC Mains Powered | Multi-Stage Filtration
Fuel Management Systems · Fuel Polishing · Diesel Tank Cleaning

MTC-3000 Mobile Fuel Polishing System – Cart-Based 1,560 GPH Diesel and Bio-Fuel Tank Cleaner with Multi-Stage Filtration and Magnetic Conditioning

The MTC-3000 mobile fuel polishing system is a high-capacity, cart-mounted, AC-powered industrial unit engineered to eliminate water, sludge, ferrous metals, microbial contamination, and fine particulate from diesel and bio-fuel storage tanks. Delivering a nominal flow rate of 26 GPM / 1,560 GPH, the system processes fuel through a three-stage cleaning circuit comprising a mechanical water separator, an LG-X 3000 inline magnetic conditioner, and a secondary spin-on fine filter selectable from 1, 3, 10, or 25 microns — including water block options. Its cart-based design with locking 1.5-inch cam and groove inlet connections, 25-foot hoses, and a built-in spill containment tray makes it a fully self-contained polishing unit capable of servicing high-volume tanks and multiple locations across a site in a single maintenance session.

1,560 GPH Flow Rate
120 / 230V Power Supply
1µ – 25µ Filtration Rating
200 lbs Unit Weight

The MTC-3000 is a heavy-duty mobile fuel polishing system built for facilities and operations that maintain large-volume diesel fuel stores where contamination control directly affects equipment reliability and operational uptime. Powered from a standard AC mains outlet and mounted on a wheeled cart for unrestricted site mobility, the system draws fuel through a staged cleaning circuit — a mechanical water separator for bulk water and sludge removal, an LG-X 3000 inline magnetic conditioner for ferrous metal capture, and a precision-rated spin-on fine filter to deliver fuel that meets modern diesel engine cleanliness requirements. With a 26 GPM / 1,560 GPH flow rate, the MTC-3000 can process over 12,400 gallons in a standard eight-hour maintenance window, making it the right choice for high-capacity marine fuel tanks, industrial bulk storage, large generator installations, and commercial fleet fuel depots. Its fine filter bypass mode, locking cam and groove connections, and integrated spill containment tray are all engineered for demanding, real-world fuel maintenance work where efficiency and safety cannot be compromised.

  • High-Capacity Multi-Stage Fuel Filtration at 26 GPM / 1,560 GPH: The MTC-3000 processes diesel and bio-fuel through three sequential cleaning stages at a nominal flow rate of 26 GPM, handling up to 12,480 gallons in an eight-hour run and over 37,400 gallons across a continuous 24-hour period. The primary mechanical water separator captures free water and heavy sludge in the first stage, the LG-X 3000 inline magnetic conditioner extracts ferrous particles and metal fines in the second stage, and the secondary spin-on fine filter — available from 1 to 25 microns, with water block variants at 3 and 10 microns — removes residual fine contamination to achieve the fuel cleanliness standards required for reliable diesel injection system performance. This combination of throughput and multi-stage cleaning effectiveness makes the MTC-3000 suitable for large-volume tank servicing that would be impractical with lower-capacity polishing units.
  • Cart-Based Portable Design for High-Volume Site Servicing: Built on a robust wheeled cart platform, the MTC-3000 gives maintenance teams the ability to move the entire polishing system between fuel tanks at a facility without mechanical handling equipment or a dedicated installation location. All system components — the 3/4 HP pump, primary water separator, magnetic conditioner, fine filter housing, vacuum and pressure gauges, hoses, and spill containment tray — are integrated into a single compact unit that an operator can position alongside any accessible tank. The 25-foot clear suction hose and 25-foot discharge hose provide generous operational reach to service tanks in confined plant rooms, below-deck installations, and ground-level storage yards, allowing the same unit to serve multiple tank locations within a facility across a single maintenance session.
  • 3/4 HP Rotary Vane Pump for Sustained High-Flow Operation: The MTC-3000 is powered by a 3/4 HP rotary vane pump that delivers a steady 26 GPM flow rate under AC mains power, sustaining high-volume fuel circulation through the entire multi-stage filtration circuit without flow degradation during extended polishing runs. The rotary vane design handles the demanding suction and discharge pressures generated during large-tank polishing cycles while maintaining the consistent flow rate needed to work effectively through all three operational phases. The pump supports a primed vertical suction lift of 15 feet or a 100-foot horizontal run on primed lines greater than 1.5 inches in diameter, providing the reach needed to draw fuel from deep storage tanks, underground vessels, or elevated day-tanks. Maximum operating fluid viscosity is 5 cSt, covering the full range of diesel and bio-diesel grades in commercial and industrial use.
  • Locking 1.5-Inch Cam and Groove Connections for Fast, Secure Hose Management: All fuel connections on the MTC-3000 use industrial-grade locking cam and groove couplings — 1.5-inch on the inlet and 1.25-inch on the discharge ports — providing a fast, tool-free, and leak-resistant method for connecting the suction and discharge hoses at each tank service location. The locking mechanism ensures hoses remain positively secured during operation even as the pump generates full suction vacuum and discharge pressure, preventing uncontrolled hose separation that could cause fuel spills or operator exposure. The 1.5-inch clear suction hose allows the operator to visually confirm fuel flow and pump prime status throughout each polishing run, and the larger bore connection diameter supports the high flow rates the MTC-3000 delivers without generating excessive suction-side restriction.
  • Fine Filter Bypass Capability for Phased Polishing and Filter Life Extension: The MTC-3000 incorporates a fine filter bypass mode that routes fuel exclusively through the mechanical water separator, completely bypassing the secondary fine filter during the initial stages of a polishing cycle. This capability is critical for tanks carrying heavy water, sludge, or coarse particulate loads — conditions where engaging the fine filter immediately would cause rapid loading and premature element replacement before meaningful tank cleaning has been achieved. By systematically removing the worst contamination in bypass mode during Phases 1 and 2, the operator protects the fine filter for Phase 3, where absolute-rated filtration is applied to bring residual contamination down to the cleanliness code requirements that bypass-only polishing cannot achieve.
  • LG-X 3000 Inline Magnetic Conditioner for Ferrous Metal Removal and Fuel Conditioning: Positioned in the fuel circuit between the primary mechanical water separator and the secondary fine filter, the LG-X 3000 inline magnetic conditioner uses a focused magnetic field to capture ferrous particulate — rust fragments, metal wear debris, and fine metallic fines — that passes through mechanical filtration but would otherwise reach and damage precision fuel injection components. Beyond particle capture, the magnetic conditioning stage disrupts the molecular clustering behaviour associated with long-term fuel storage and bio-diesel degradation, helping to preserve fuel combustibility and slow the rate of fuel quality decline between scheduled polishing intervals. The inline design adds no flow restriction and requires no consumable maintenance — it operates as a permanent system component that simply needs periodic visual inspection during routine servicing.
  • Spill Containment Tray, Dual Discharge Ports, and Integrated Safety Monitoring: The MTC-3000 incorporates a built-in spill containment tray beneath all filter housings and connection points, capturing incidental fuel drips during hose connection, filter changes, and water separator draining — an essential safeguard when working in areas where fuel spills create safety or environmental compliance risks. Dual discharge ports with independent outlet ball valves enable rapid switchover between bypass mode and fine filtration mode without disconnecting hoses or reconfiguring the plumbing. Vacuum and pressure gauges provide continuous real-time monitoring throughout each polishing session — the vacuum gauge identifies suction-side restrictions caused by a clogged separator or blocked inlet, while the pressure gauge on the fine filter housing indicates when the spin-on element requires replacement at 20 to 25 PSI.
  • Large Marine Vessel and Commercial Harbour Fuel Tanks: High-capacity diesel storage aboard large commercial vessels, offshore support ships, ferries, and harbour bunkering installations accumulates water ingress, microbial growth, and sludge at a rate proportional to storage volume and dwell time. The MTC-3000's 1,560 GPH flow rate allows it to complete multiple full circulation passes on large marine fuel tanks within a practical alongside or dry-dock maintenance window, making it the preferred choice where lower-capacity units would require impractically long service times. The locking 1.5-inch cam and groove connections integrate cleanly with standard marine tank access fittings, and the 25-foot hoses provide the reach required to service tanks in deep bilge spaces and below-deck fuel compartments.
  • Standby Generator and Critical Infrastructure Fuel Tanks: Large standby diesel generators at hospitals, data centres, airports, and government facilities maintain bulk fuel reserves that must be immediately available in combustible condition during emergency power events. Fuel sitting in large-capacity day-tanks and bulk storage tanks over extended standby periods is susceptible to water accumulation, microbial proliferation, and sludge formation that can block injection systems at exactly the moment reliable engine starting is most critical. Incorporating the MTC-3000 into a scheduled preventive maintenance programme ensures that stored fuel remains clean, dry, and within combustibility specification — dramatically reducing the risk of fuel-related generator start failure during a live emergency event.
  • Industrial Bulk Fuel Storage and High-Volume Fleet Fuelling Depots: Industrial facilities, mining operations, and large fleet fuelling depots maintain substantial diesel storage volumes that are replenished regularly and dispensed continuously to engines, generators, and mobile plant. Each incoming delivery introduces potential for new contamination, and high-volume tanks accumulate water and biological growth between maintenance intervals. The MTC-3000's elevated throughput capacity — over 37,000 gallons in a 24-hour period — allows it to service large-volume tanks within scheduled shutdown windows without impacting fuelling operations, and its cart-based portability enables a single system to be shared across multiple tank locations within an industrial site.
  • Commercial Construction Sites and Remote Field Operations: Large construction projects, quarrying operations, and remote resource extraction facilities store diesel in bulk field tanks, mobile bowsers, and above-ground storage vessels exposed to contamination from condensation, dust ingress, and variable-quality fuel deliveries. Equipment downtime at remote sites is disproportionately costly because replacement parts and repair crews must travel significant distances. The MTC-3000's high flow rate allows site fuel managers to polish large field tank volumes quickly during planned maintenance periods, ensuring that all fuel dispensed to excavators, haul trucks, drilling rigs, and generators has been filtered to the cleanliness level that protects modern direct-injection engines.
  • Power Generation Plants and Fuel Storage Terminals: Power generation facilities operating diesel or dual-fuel backup generation capacity at scale maintain large fuel reserves subject to stringent quality requirements for regulatory compliance and operational reliability. Fuel storage terminals that supply multiple downstream customers must ensure that dispensed fuel meets accepted contamination standards to avoid liability for downstream equipment damage. The MTC-3000's combination of high throughput, multi-stage absolute filtration, and water removal capability makes it an effective polishing solution for both on-site fuel quality management at power plants and pre-dispatch cleaning operations at commercial fuel storage and distribution facilities.
  • Professional Fuel Polishing Service Contractors: Mobile fuel polishing contractors who provide scheduled tank maintenance to multiple commercial and industrial clients benefit directly from the MTC-3000's high throughput and operational flexibility. The ability to handle tanks from moderately contaminated generator reserves to severely degraded marine fuel stores — switching between bypass mode and fine filtration mode, and selecting filter micron ratings for each job — allows a single MTC-3000 unit to cover the full spectrum of commercial fuel polishing work a contractor encounters. Its high GPH rating means more tanks serviced per site visit, improving capacity and profitability per operating day.

Specifications listed below apply to the standard MTC-3000 mobile fuel polishing system. Replacement filter elements are available separately — contact us with your requirements for part numbers and availability.

Parameter Specification
Nominal Flow Rate 26 GPM / 1,560 GPH (98.4 LPM / 5,905 LPH)
Processing Capacity (8-hour shift) 12,480 gallons (47,242 litres)
Processing Capacity (24-hour period) 37,440 gallons (141,726 litres)
Pump Type 3/4 HP Rotary Vane Pump
Power Supply 120V/60Hz/15A or 230V/50Hz/15A*
Primary Filter Mechanical Water Separator
Secondary Filter Options 1, 3, 10, or 25µ Fine Filter or 3, 10µ Water Block
Secondary Filter (Standard Issue) 3µ Fine Filter (Part No. FF-3)
Fuel Conditioner LG-X 3000 Inline Magnetic Conditioner
Plumbing Material Black Iron
Inlet Port 1.5" Cam & Groove
Outlet Ports 1.25" Cam & Groove (Discharge Port 1 & Port 2)
Suction Hose Clear, 25 ft (7.6 m), 1.5" Diameter
Discharge Hose 25 ft (7.6 m), 1.25" Diameter
Suction Capability (Primed) 15 ft (4.6 m) vertical lift or 100 ft (30.5 m) horizontal run (lines >1.5", primed)
Maximum Fluid Viscosity 5 cSt
Operating Temperature Range 41–104°F (5–40°C)
Dimensions (H × W × D) ≈ 48" × 22.5" × 25" (122 × 57 × 63 cm)
Weight ≈ 200 lbs (90.7 kg)
Compatible Fuels Diesel and Bio-Fuel Blends (flash point ≥ 100°F / 37.8°C)
Fine Filter Change Indicator 20–25 PSI / red zone on pressure gauge

*At 50 Hz, nominal flow rate decreases from 26 GPM / 1,560 GPH to 20.8 GPM / 1,248 GPH.

How the MTC-3000 Mobile Fuel Polishing System Works

Setting up the MTC-3000 begins with connecting the system to a compatible AC mains power supply — either 120V/60Hz or 230V/50Hz — and ensuring the unit is properly grounded for operator safety. The 1.5-inch clear suction hose is attached to the inlet cam and groove port and positioned so its end reaches the deepest accessible point within the fuel storage tank, targeting the area where water and sludge naturally settle. The 1.25-inch discharge hose is connected to the appropriate outlet port depending on the selected operating mode. Before starting the pump, the entire suction side of the system — including the suction hose, primary water separator housing, internal plumbing, and pump — must be fully primed with fuel. The pump is not self-priming and running it without fuel in the circuit will cause damage.

For tanks carrying significant contamination, a three-phase polishing approach is recommended. In Phase 1, the system operates in bypass mode with the discharge hose routed to a separate waste container, allowing bulk free water and bottom sludge to be pumped out and discarded without recirculating contamination back into the tank. In Phase 2, still in bypass mode, the discharge hose is placed back into the tank and fuel is recirculated through the mechanical water separator — progressively removing residual water, sludge, and large particulate while keeping the fine filter out of the circuit and extending its service life. The vacuum gauge monitors suction-side condition throughout both bypass phases, alerting the operator if the water separator builds restriction and needs draining via its dedicated drain valve.

Phase 3 transitions the MTC-3000 to fine filtration mode by moving the discharge hose connection to the second outlet port, routing fuel through the absolute-rated spin-on fine filter after the separator and magnetic conditioning stages. The pressure gauge between the pump outlet and the fine filter housing monitors element condition in real time — when pressure climbs to 20–25 PSI or the needle enters the red zone, the filter element is saturated and should be replaced before resuming the session. Once polishing is complete and clean fuel samples confirm acceptable cleanliness, the pump is shut down, the system is drained for storage, and the spill containment tray captures any residual fuel released during hose disconnection or filter servicing.

Technical FAQ

Common Questions Answered

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The MTC-3000 is designed for use with diesel fuel and bio-diesel blends that have a flash point at or above 100°F (37.8°C). It must not be used with gasoline, petrol, or any other flammable liquid below this flash point threshold — operating the system with such fluids creates an immediate fire and explosion hazard. Always confirm the flash point of the fuel before connecting and running the system, particularly when working with unfamiliar bio-blend formulations or fuel drawn from mixed-use storage tanks.

The MTC-3000 operates at a nominal flow rate of 26 GPM (1,560 GPH / 98.4 LPM). This translates to approximately 12,480 gallons (47,242 litres) in an 8-hour maintenance shift and up to 37,440 gallons (141,726 litres) over a 24-hour continuous run — making it well suited for high-volume tank servicing where lower-capacity polishing units would require impractically long operating times. When running on a 50 Hz supply, the flow rate reduces to 20.8 GPM / 1,248 GPH.

Fine filter cartridges (available in 1µ, 3µ, 10µ, and 25µ absolute ratings) remove particulate contamination down to their rated micron size and are the correct choice for tanks where particulate is the primary concern. Water block filters (3µ WB-3 and 10µ WB-10) combine the same particulate removal performance with hydrophobic filter media that actively prevents both free and emulsified water from passing downstream. For tanks with combined water and particulate contamination, the recommended approach is to begin polishing with a coarser particulate filter to handle bulk contamination across early passes, then switch to a 3µ water block cartridge for the final fine filtration phase to achieve the highest attainable fuel cleanliness standard.

Engaging bypass mode during the initial polishing phases removes bulk free water, heavy sludge, and coarse particulate through the mechanical water separator alone — without routing that contamination through the secondary fine filter cartridge. Fine filter elements are absolute-rated consumables: asking them to capture heavy bulk contamination dramatically shortens their service life and increases the cost and frequency of element changes required to complete a polishing cycle on a badly fouled tank. The phased approach — bypass mode for Phases 1 and 2, fine filtration mode for Phase 3 — maximises filter element life, lowers per-tank operating cost, and ensures that the high-efficiency final filtration stage is only applied once the fuel has already been substantially cleaned by the separator and magnetic conditioning stages.

The MTC-3000 operates on either 120V/60Hz/15A (standard North American mains) or 230V/50Hz/15A (international mains). The system requires no external compressed air, water, or additional utilities — a grounded mains outlet at the appropriate voltage is the only external service connection needed. The entire system must be properly grounded before operation; correct earthing is a mandatory safety requirement. When running on a 50 Hz supply, nominal flow rate decreases from 26 GPM / 1,560 GPH to 20.8 GPM / 1,248 GPH.

The pressure gauge on the MTC-3000 is mounted between the pump outlet and the spin-on fine filter housing. As the filter element accumulates contamination and begins to restrict flow, the gauge reading rises progressively during operation. When the needle reaches 20 to 25 PSI — or enters the red zone on the gauge dial — the fine filter element has reached its capacity and should be replaced before continuing the polishing session. If a freshly installed filter immediately generates a high pressure reading at start-up, this indicates a discharge-side restriction such as a closed outlet ball valve or blocked discharge line rather than a filter condition issue, and should be investigated separately before running the pump.

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