Marvell Solube EP Nitrate-Free Cutting Oil 205L

Product Description

Marvell Solube EP Nitrate-Free Cutting Oil is a water-miscible metalworking fluid concentrate developed to provide effective cooling, lubrication and corrosion protection during a wide range of machining operations. When correctly mixed with water, it forms a stable working emulsion that helps control heat at the cutting zone while maintaining the lubricating film required between the cutting tool and the workpiece.

The product incorporates extreme-pressure performance to support machining operations where ordinary general-purpose soluble oils may not provide sufficient load-carrying capability. Under demanding cutting conditions, the EP additive system helps reduce friction, tool-edge loading, metal pickup and direct contact between the tool and the workpiece. This can support improved tool life, more consistent machining and a better surface finish.

Marvell Solube EP is formulated without nitrate, making it suitable for workplaces and production specifications requiring a nitrate-free water-miscible cutting fluid. The nitrate-free description applies specifically to nitrate content and should not be interpreted as a general statement about every component of the formulation. The current Safety Data Sheet should be consulted for complete compositional, health and safety information.

The combination of water-based cooling and oil-based lubrication makes Marvell Solube EP suitable for machining processes that generate substantial heat. Water within the prepared emulsion carries heat away from the cutting zone, while the lubricating and EP components help reduce friction and maintain protection under load. This combination can help control workpiece temperature, minimise thermal distortion and maintain dimensional consistency.

Marvell Solube EP may be used in individual machine sumps and appropriate centralised coolant systems. It can be considered for turning, drilling, milling, boring, reaming, sawing, tapping and compatible grinding operations, subject to the selected concentration, workpiece material, tool type, machine design and required surface finish.

The economical 205-litre drum is intended for industrial users, engineering workshops, metal fabrication facilities and production plants operating multiple machine tools or centralised coolant systems. Bulk packaging reduces the number of smaller containers required and supports controlled dispensing into coolant-mixing equipment.

Specifications and Product Details

• Brand: Marvell
• Product: Solube EP Nitrate-Free Cutting Oil
• Product category: Water-miscible metalworking fluid
• Product form: Concentrated soluble cutting oil
• Performance type: Extreme-pressure cutting fluid
• Formulation statement: Nitrate-free
• Pack size: 205 litres
• Product SKU: M331001010001
• Application method: Dilute with water before use
• Working-fluid type: Water-based machining emulsion
• Primary functions: Cooling, lubrication, corrosion protection and chip removal support
• Suitable system types: Individual machine sumps and compatible central coolant systems
• Typical operations: Turning, milling, drilling, boring, reaming, tapping, sawing and suitable grinding operations
• Neat-oil application: Not intended to be treated automatically as a straight or neat cutting oil
• Formal OEM approvals: No separate equipment-manufacturer approvals are currently published for this product
• Concentration requirement: Select according to the current Marvell Technical Data Sheet, machining severity and site conditions

Marvell Solube EP is a concentrated product and must be mixed with water at the appropriate concentration before use. The recommended operating concentration can vary according to the machining process, metal type, cutting speed, tool geometry, water quality and required corrosion protection.

Recommended Applications

Marvell Solube EP Nitrate-Free Cutting Oil may be considered for the following metalworking processes where a water-miscible EP coolant is appropriate:

• CNC machining centres
• Conventional lathes
• CNC turning centres
• Milling machines
• Drilling machines
• Automatic and manual saws
• Boring operations
• Reaming operations
• Tapping and threading operations
• General machining
• Moderate and demanding cutting operations
• Compatible surface and cylindrical grinding
• Single-machine coolant sumps
• Multi-machine central coolant systems
• Engineering and maintenance workshops
• Metal fabrication facilities
• Component production plants

Suitability must be confirmed for the particular workpiece material. Ferrous materials such as carbon steel, alloy steel and cast iron may generally be machined with properly selected water-miscible cutting fluids. Aluminium, copper alloys, brass, bronze, magnesium, zinc-coated components and other sensitive non-ferrous materials should be evaluated before full production use.

A controlled machine trial is recommended when surface staining, discolouration, residue, paint compatibility or material sensitivity is a concern. The trial should use the intended water supply, operating concentration, machine construction materials and production conditions.

Key Features and Benefits

Extreme-Pressure Machining Performance

Marvell Solube EP contains an extreme-pressure additive system designed to strengthen lubrication under demanding cutting loads. During machining, very high pressure can develop where the tool contacts the workpiece. If the lubricating film becomes insufficient, metal pickup, scoring, poor finish and rapid tool wear may occur.

The EP performance helps maintain protection under boundary-lubrication conditions, supporting more reliable cutting and reduced friction. This makes the product suitable for operations requiring more load-carrying performance than a basic soluble coolant may provide.

Effective Cooling

Machining produces heat through metal deformation and friction. Excessive heat can shorten tool life, affect workpiece dimensions and reduce finished-component quality.

When Marvell Solube EP is correctly diluted, the water phase provides efficient heat removal from the cutting zone. Continuous coolant flow also carries heat away from the tool, workpiece and nearby machine surfaces.

Effective cooling is particularly important during higher-speed cutting, drilling and grinding operations. Coolant delivery must be correctly positioned and sufficient in volume to reach the cutting interface.

Lubrication and Surface-Finish Support

The lubricating components help reduce friction between the cutting tool, chips and workpiece. Reduced friction can assist with smoother cutting, lower tool-edge loading and improved finished-surface quality.

Results depend on the operation, tool condition, cutting speed, feed rate, workpiece material and coolant concentration. A poorly maintained or excessively weak mixture may not provide adequate lubricity, while an unnecessarily strong mixture may increase residue, foaming or operating cost.

Nitrate-Free Formulation

Marvell Solube EP is formulated without nitrate. This makes it suitable for facilities whose metalworking-fluid policy, customer specification or internal chemical-management requirements call for a nitrate-free product.

Nitrate-free does not mean that normal workplace controls are unnecessary. Operators should continue to minimise skin contact and avoid inhaling machining mist. The coolant should be maintained correctly to control contamination, microorganisms, tramp oil and metal fines.

Corrosion Protection

Water-miscible coolants require corrosion inhibitors to protect workpieces, machine surfaces, sumps and coolant-delivery components. Marvell Solube EP is designed to provide corrosion protection when maintained at the correct concentration.

If the emulsion becomes excessively diluted, contaminated or degraded, corrosion protection may be reduced. Regular concentration checks and corrective maintenance are therefore essential.

Workpieces should be inspected after machining when they will be stored, transported or held between manufacturing stages. Additional corrosion protection may be required for extended storage or exposure to humid conditions.

Chip and Swarf Removal

Adequate coolant flow helps move chips and fine metal particles away from the cutting area. Effective chip removal can reduce recutting, improve visibility and help prevent chips from becoming trapped between the tool and workpiece.

Coolant filtration should be matched to the machining process. Grinding and fine-finishing operations generally require more effective filtration than heavy machining. Metal fines should not be permitted to accumulate excessively in sumps, pumps or return channels.

Suitable for Bulk Industrial Use

The 205-litre drum supports workshops and production facilities with substantial coolant consumption. It can be used with suitable drum pumps, metered mixing systems or central coolant-management equipment.

Dedicated dispensing equipment should be used to prevent contamination. Pumps or hoses previously used for solvents, neat cutting oils, hydraulic oils or other chemicals should not be used unless they have been properly cleaned and verified as compatible.

Metalworking-Fluid Performance

The performance of a soluble cutting fluid depends on more than the quality of the concentrate. Water hardness, chloride content, microbial contamination, tramp oil, temperature, filtration and concentration can all affect coolant life and machining performance.

Water that is too soft may encourage foaming, while very hard water may contribute to instability, deposits or soap formation. Where water quality is uncertain, it should be tested before charging a large central system.

The coolant concentration should be monitored using a clean, calibrated refractometer and the correct product factor. A refractometer reading may be affected by tramp oil, dissolved contaminants and aged fluid, so periodic laboratory or titration testing may be required for critical systems.

Typical Physical Properties

Typical properties are representative product information and are not guaranteed manufacturing limits. Batch-specific values should be obtained from the current Marvell Technical Data Sheet or Certificate of Analysis.

Handling & Storage Advice

Store Marvell Solube EP in its original, correctly labelled drum in a cool, dry and well-ventilated area. Keep the drum protected from direct sunlight, rain, elevated temperatures, frost and incompatible chemicals.

Keep all bungs, pumps and dispensing connections securely closed when not in use. Water, dirt, metal swarf, used coolant, tramp oil and other contaminants must not be allowed to enter the concentrate drum.

Store the drum upright on a stable surface within an appropriate bunded area. Inspect the drum regularly for leakage, corrosion or physical damage. Use suitable mechanical handling equipment when moving the 205-litre drum. A full drum must not be manually lifted or moved in an uncontrolled manner.

Avoid eye contact, prolonged skin contact and inhalation of oil mist or machining aerosol. Suitable protective equipment may include safety glasses, protective clothing and chemical-resistant gloves selected according to the workplace risk assessment.

Wash exposed skin thoroughly after handling the concentrate or working emulsion. Do not use solvents or abrasive cleaners to remove coolant from the skin. Contaminated clothing should be removed and cleaned before reuse.

Clean spills promptly because both the concentrate and prepared coolant can make floors extremely slippery. Contain the spill with suitable absorbent material and prevent the product from entering drains, soil, stormwater systems or waterways.

Used coolant must not be discharged without confirming the applicable environmental and waste-disposal requirements. Consult the current Safety Data Sheet before workplace use.

Mixing and Directions for Use

Clean the machine sump, pipework, pumps, filters and coolant-return areas before introducing a fresh charge. Residual degraded coolant, bacteria, fungal contamination, tramp oil and accumulated metal fines can shorten the service life of a new mixture.

Always add the concentrate to water while providing adequate agitation. Do not pour water directly into a container of concentrate. Adding concentrate to water promotes correct emulsion formation and reduces the possibility of creating an unstable invert mixture.

Use clean water of suitable quality. Begin with the quantity of water required and slowly meter Marvell Solube EP into the circulating water. Continue mixing until the fluid is uniform.

Set the concentration according to the current product recommendation and machining operation. Higher concentrations generally provide greater lubricity and corrosion protection for demanding operations, while lower concentrations may provide greater cooling for lighter machining or suitable grinding applications. Concentration should not be selected using a generic ratio alone.

When topping up an operating system, add a correctly prepared premix rather than adding concentrate or water independently. Repeated addition of concentrate directly to the sump can produce locally over-concentrated fluid, while adding water alone may reduce corrosion protection.

Coolant-System Maintenance

Check coolant concentration regularly with a calibrated refractometer. Record the results and make adjustments using prepared premix.

Monitor the system for changes in appearance, odour, foam, residue, corrosion, separation or operator acceptance. An abnormal odour can indicate microbial activity or contamination and should be investigated rather than covered with fragrance or excessive concentrate.

Remove tramp oil using skimmers, coalescers or other suitable separation equipment. Tramp oil can restrict oxygen transfer, encourage microbial growth and reduce coolant performance.

Remove chips, swarf and grinding fines through appropriate settling, screening or filtration. Accumulated metal can consume additives, interfere with pumps and create conditions that promote coolant instability.

Maintain coolant flow and inspect nozzles regularly. Blocked or poorly positioned nozzles may prevent the fluid from reaching the cutting interface even when the sump contains coolant at the correct concentration.

Do not mix Marvell Solube EP with unknown cutting fluids. Different additive technologies may be incompatible and could cause separation, foaming, residue, reduced corrosion protection or loss of microbial control.

Pack Information

• Product: Marvell Solube EP Nitrate-Free Cutting Oil
• Pack size: 205 litres
• Container type: Industrial metalworking-fluid drum
• SKU: M331001010001
• Product form: Water-miscible concentrate
• Intended users: Engineering workshops, machine shops, fabricators and industrial production facilities
• Dispensing requirement: Clean, dedicated drum pump or metered mixing equipment
• System requirement: Suitable coolant sump, circulation and filtration arrangement