| HS Code | 489993 |
| Brand | Hydetech |
| Model | 6012 |
| Product Type | Hydraulic gear pump |
| Displacement | 12 cc/rev |
| Maximum Pressure | 210 bar |
| Flow Rate | 18 L/min at 1500 rpm |
| Rotation Direction | Clockwise |
| Mounting Flange | SAE-A |
| Shaft Type | Parallel key |
| Weight | 6.8 kg |
As an accredited hydetech 6012 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Hydetech 6012 is packaged in a 25 kg sealed plastic drum, with clear hazard labeling and a tamper-evident lid. |
| Container Loading (20′ FCL) | Hydetech 6012 packed in 20′ FCL, palletized, secured, labeled, and stowed per chemical safety requirements. |
| Shipping | Hydetech 6012 ships in sealed drums, IBCs, or approved bulk containers, secured upright and protected from moisture. It is typically non-hazardous for transport, but confirm the SDS. Avoid extreme heat and contact with incompatible materials. Include proper labels, shipping paperwork, and spill-response documentation. Standard road, rail, or sea freight applies. |
| Storage | Store Hydetech 6012 in its original, tightly sealed container in a cool, dry, well-ventilated area away from direct sunlight, heat, and ignition sources. Keep separate from incompatible materials, food, and drinking water. Prevent freezing or extreme temperature fluctuations. Ensure containers are labelled and inspected regularly for leaks. Use proper containment to avoid spills, and store out of reach of unauthorized personnel. |
| Shelf Life | Hydetech 6012 typically has a shelf life of 2-3 years when stored in sealed containers, away from moisture and extreme temperatures. |
In hot-weather ready-mix concrete, the dominant conflict is not initial water reduction but the maintenance of a 500–600 mm slump after 90 min of transit and site waiting. Hydetech 6012 is dosed at 0.12–0.25 wt% of total cementitious material by mass, with the lower end reserved for low-tricalcium-aluminate cements below 8% C3A and the upper end required when cement surface area exceeds 360 m²/kg blend. Compliance is tested under ASTM C494/C494M-19 Type F criteria for water reduction, where the admixture must demonstrate not less than 12% water reduction versus a control mix of equal slump. In production batching, the admixture is injected into the mix water when the mixer is at 40–60% of total target revolutions, not directly onto dry cement; this avoids rapid precipitation and premature adsorption on calcium sulfate surfaces. When placement temperature exceeds 35°C, the admixture is combined with a set-retarding hydration control package to maintain an induction period of 4–6 h, but the admixture itself must not extend final set beyond the 90 min site acceptance limit. Terminal outputs include pump-ready structural slabs, columns, shear walls, and footings where delayed slump loss is specified by truck-to-form discharge intervals.
A processing boundary occurs above 0.30 wt%: excessive polycarboxylate ether surface coverage produces froth air above 3.0% during drum mixing at 8–12 rpm, and the air-entraining admixture response becomes unstable. Cement pastes requiring more than 0.30 wt% to maintain the target slump generally indicate sulfate-limited aluminate adsorption or contaminated returned slurry solids; both conditions must be resolved by aggregate control or returned-concrete inventory adjustment rather than additional Hydetech 6012. Batch-to-batch variance in cement C3A from 6% to 12% can shift slump retention by 40–60 min, so routine quality control uses methylene blue adsorption of the blended cement as a predictor of initial dosage.
Long-line prestressed hollow-core production imposes an apparent water demand ceiling at 0.34–0.36 w/c at placement, because excess free water raises prestress transfer shrinkage and strand slip in open-top casting beds. Hydetech 6012 is introduced at 0.15–0.25 wt% of binder to reduce mixing water by 18–30% and to meet EN 934-2:2009+A1:2012 Table 3.2 high-range water-reducing admixture criteria for compressive strength and air content control. The production sequence in bed plants places the admixture into the final portion of mix water at 20–25°C, after the binder-rich paste has formed, then a pan mixer or planetary mixer discharges after 60–90 s of post-admixture mixing at 25–35 rpm. In steam-curing lines where the concrete surface reaches 60–65°C within 3–4 h, the dosage must not push initial set later than 45–60 min after casting; otherwise a crust forms before travelling beam finishing and the strand anchorage zone loses bond. Finished product types include prestressed hollow-core slabs, T-beams, railway sleepers, and pretensioned piles where early-age release strength is specified at 30–40 MPa before transfer.
A known limitation is that polycarboxylate ether with high slump retention can delay final set in steam-cooked panels when tunnel kiln ramp rates are lower than 10°C/h. In that case the dosage is reduced to 0.12–0.15 wt% and a lignosulfonate secondary dispersant is avoided, because competitive adsorption between lignosulfonate and polycarboxylate ether causes unstable rheology at low free-water ratios.
| Application boundary | Governing standard or test method | Critical measured property | Accepted operating envelope |
|---|---|---|---|
| Hot-weather ready-mix concrete | ASTM C494/C494M-19 Type F | Water reduction versus control | ≥ 12% |
| Precast and prestressed concrete | EN 934-2:2009+A1:2012 Table 3.2 | High-range water reduction and setting stability | Initial set 45–60 min under steam curing |
| Self-consolidating concrete | ASTM C1611/C1611M-21 | Slump flow spread and visual stability index | 650–750 mm; VSI ≤ 1 |
| Gypsum plasterboard | EN 13279-1:2008; EN 520 | Flow table spread | 180–220 mm |
| Oil well cementing | API RP 10B-2 | Pressurized plastic viscosity and static gel strength | Plastic viscosity < 80 cP |
| Manufactured sand concrete | ASTM C1777-20 | Fine aggregate methylene blue value | 1.5–3.0 g/100 g |
Self-consolidating concrete that must travel through boom pump restrictions at 25–40 bar and through steel cages with clear spacing below 75 mm is governed by the stability of the paste phase rather than initial spread alone. Hydetech 6012 is dosed at 0.25–0.35 wt% of cementitious material to reach a slump flow of 650–750 mm under ASTM C1611/C1611M-21. The defining process threshold is a V-funnel t500 of 2–5 s combined with a visual stability index no greater than 1; outside this band, either the paste fraction is too thin for pumping restart after stoppage or the coarse aggregate lags behind the mortar phase. Production uses split dosing: 70% of the admixture is added during initial high-shear mixing and 30% after 10–15 min of controlled rest, which improves side-chain adsorption on limestone fines passing 0.125 mm at 10–15% by binder mass replacement. Terminal product types include full-height shear walls, tunnel lining segments, architectural cast-in-place columns, and precast box culverts with high reinforcement density.
Overdosing above 0.40 wt% is not corrected by viscosity-modifying admixtures and leads to a discontinuous increase in V-funnel time, because the interstitial paste becomes too fluid while coarse aggregate lag appears at slump flow spread above 750 mm. Mix water must not include recycled slurry with a density above 1.12 g/cm³ from previous washout, since sulfate ions from trapped hydration products disturb the polycarboxylate ether adsorption equilibrium and may throw the mix into rapid stiffening in the line.
Hydetech 6012 is used in stucco flat-line processes at 0.05–0.12 wt% of the stove-dried gypsum binder weight. The function is not only water reduction but control of flow table spread in the 180–220 mm range before the former pours onto moving paper. Compliance is evaluated under EN 13279-1:2008 for gypsum building plasters, while paper-faced plasterboard production follows the mechanical requirements of EN 520. In a continuous flat-line mixer, the liquid admixture is injected directly into the water line at a pump setting that delivers a residence time of 3–5 s before dry stucco enters the mixing zone. The water-to-stucco ratio can be reduced from 0.75–0.85 to 0.55–0.65 depending on board density and edge hardness specification. Terminal product types are paper-faced gypsum wallboard, gypsum fiberboard, and gypsum blocks, where lower drying energy input per square metre is the measured process output.
Formulations with polyvinyl alcohol and hydrophobic emulsion additives below 0.5 wt% of stucco tolerate the dispersant without major retardation, but the admixture must not be mixed with hard tap water above 350 mg/L calcium hardness, because calcium ion complexation can reduce dispersant efficiency by 10–15% and increase foam height in the mixer. At forming speeds above 70 m/min, the low water ratio becomes sensitive to stucco aging after calcination, and over-dosage above 0.15 wt% can cause paper delamination at the board edges due to excessive slurry bleed.
| Application scenario | Dosage by binder mass | Critical processing threshold | Terminal product type |
|---|---|---|---|
| Hot-weather ready-mix concrete | 0.12–0.25 wt% | Slump 500–600 mm at 90 min | Structural slabs, columns, footings |
| Precast and hollow-core production | 0.15–0.25 wt% | Initial set 45–60 min under steam | Hollow-core slabs, sleepers, piles |
| Self-consolidating concrete | 0.25–0.35 wt% | V-funnel t500 2–5 s | Shear walls, tunnel linings, box culverts |
| Gypsum plasterboard | 0.05–0.12 wt% | Flow table spread 180–220 mm | Paper-faced plasterboard, fiberboard, blocks |
| Oil well cementing | 0.3–0.6 wt% BWOC | BHCT 80–110°C; plastic viscosity < 80 cP | Primary cementing and liner slurries |
| Manufactured sand concrete | 0.18–0.28 wt% | MBV 1.5–3.0 g/100 g | Girders, shotcrete, high-grade pavement |
Oil well cementing slurries mixed to API RP 10B-2 density schedules at bottomhole static temperatures above 80°C require a dispersant that maintains plastic viscosity below 80 cP after 20 min of conditioning in a pressurized consistometer. Hydetech 6012 is added at 0.3–0.6 wt% by weight of cement in class G oilwell cement certified to API Spec 10A. The dosage is adjusted based on the particulate solids loading of hematite or barite weighting agents, with 0.3 wt% reserved for conventional slurries below 1.85 g/cm³ and 0.55–0.6 wt% for weighted slurries above 2.00 g/cm³. The mixing process uses a high-shear field dosing skid and recirculating batch mixer, with the admixture injected into mix water before cement addition to avoid dry polymer aggregation and local free-water pockets. Terminal product types are primary oil well cementing slurries and liner slurries where density control, free-water separation, and thickening time are specified for zonal isolation.
At circulating temperatures above 110°C, published data for Hydetech 6012 in saturated NaCl and KCl slurries is limited; field batching must qualify the dosage by pressurized consistometer and static gel strength analysis under API RP 10B-2. Operational boundary: avoid combining with calcium chloride accelerator at levels above 3% BWOW, because chloride ion compresses the electric double layer and reduces polycarboxylate ether chain extension, causing free water separation and unpredictable thickening time.
Fine aggregate methylene blue value is the controlling input before any polycarboxylate ether dosage selection in manufactured sand concrete. When MBV of manufactured sand is between 1.5 g/100 g and 3.0 g/100 g, Hydetech 6012 is dosed at 0.18–0.28 wt% of binder, which is 20–40% higher than the same mix using clean river sand. The interlayer cations in montmorillonite consume the polyether side chains via surface adsorption, so production sequencing splits the admixture into two fractions: 60% into pre-wetting of the sand pile and 40% after 30 s of cementitious mixing. This prevents local clay patches from stripping the entire dosage and causing slump collapse at the first truck revolution. Terminal product types include infrastructure box girders, tunnel shotcrete, and high-grade pavement where washed river sand is not available and sandstone-derived manufactured sand is the default fine aggregate.
If MBV exceeds 3.0 g/100 g, further Hydetech 6012 addition beyond 0.30 wt% generally does not recover workability proportionally and may increase matrix air content by 2–4% due to clay-stabilized foam. In such circumstances, the sand is pre-treated with a sacrificial low-molecular-weight cationic clay inhibitor or the MBV is reduced by screening below 0.075 mm. The governing compliance for aggregate quality remains ASTM C1777-20 for fine aggregate methylene blue, while the concrete performance falls under ASTM C494/C494M-19 Type F or EN 934-2 depending on the export specification.
Competitive hydetech 6012 prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615380400285 or mail to sales2@liwei-chem.com.
We will respond to you as soon as possible.
Tel: +8615380400285
Email: sales2@liwei-chem.com
Flexible payment, competitive price, premium service - Inquire now!
Hydetech 6012 is a fire-resistant water-glycol hydraulic fluid classified as HFC under ISO 6743-4 and ISO 12922:2012. The product is supplied to ISO VG 46 under ISO 3448, with a nominal kinematic viscosity of 46 mm²/s at 40 °C measured according to ISO 3104:2023. Fire resistance is derived from a nominal water content of 40% by mass; the remaining phase is a glycol-polyglycol carrier with vapor-phase and liquid-phase corrosion inhibitors. Typical installations include die-casting machine hydraulic circuits, furnace tilt and ladle control systems in primary and secondary metals, and accumulator-backed injection molding circuits. Because numerical values may change between batch certificates, the current manufacturer technical datasheet should be consulted before component sizing. Published data for Hydetech 6012 in all possible configurations is limited; statements in this document that are not directly attributed to the supplier datasheet are class-typical for HFC fluids.
Thermal exposure controls the useful operating envelope. Bulk fluid temperature in closed-loop injection molding circuits should be held between 40 °C and 50 °C during sustained operation. Above 50 °C, water loss from reservoirs with ambient breathers can reduce water content by approximately 0.1–0.3% per 100 h, depending on reservoir surface area and return-line agitation. If water content falls below 35%, viscosity can rise above 60 mm²/s at 40 °C, and cold-start torque on axial-piston pumps may exceed the drive motor breakaway rating. Immersion heaters must be specified with a maximum sheath watt density of 0.7 W/cm² and should not be cycled without circulation because film boiling can thermally crack glycol at the heater surface. At the pump inlet, the density of the fluid at 15 °C is 1.08 kg/L, which increases suction-line static head relative to mineral oil; however, the higher vapor pressure of water requires a continuous positive inlet pressure of at least 0.15 bar above atmospheric at 40 °C. Servo-proportional valves with spool clearances of 2–5 µm become sensitive to viscosity loss if a low-water condition is allowed to develop, because bypass leakage increases and positional repeatability degrades. Published Hydetech 6012-specific field data above 60 °C in closed-loop injection molding circuits is limited; the temperature limits stated here are derived from ISO 12922 HFC class behavior.
Before charging Hydetech 6012 into a system that previously held mineral oil, the residual oil content should be reduced below 2% by mass to avoid phase separation and heat-exchanger fouling. The conversion sequence includes draining the reservoir, removing free oil from pipe legs, replacing elements with 10 µm absolute media, and circulating a warm flushing charge through a kidney-loop filter bank rated at 5 µm with a beta ratio of at least 1000. The system should be filtered until ISO 4406:2021 cleanliness class 17/15/12 is achieved. Top-up water should be distilled or deionized with chloride below 25 ppm and hardness below 10 ppm as CaCO₃; untreated mains water can precipitate inhibitor packages. Galvanized piping and zinc-coated fittings are incompatible because zinc dissolution forms soaps that plug 10 µm filters. Uncoated aluminum reservoirs should be maintained below pH 9.5 to limit alkaline corrosion. Seal materials should be verified against the product datasheet; general HFC-compatible elastomers include nitrile, hydrogenated nitrile, and fluorocarbon formulations, while cork, leather, and some amine-cured epoxy coatings are unsuitable.
Under ISO 12922:2012, an HFC fluid is not simply a non-flammable liquid; it is a water-containing hydraulic fluid that must pass spray-flammability and wick-ignition evaluations referenced in the standard. For Hydetech 6012, fire resistance is therefore dependent on maintaining sufficient water content. A fluid with 40% water will extinguish a spray flame when the water vaporizes and removes heat from the ignition zone. If water content decreases below 30%, the remaining glycol-rich liquid can support combustion under high-pressure spray release, and the fluid should no longer be treated as HFC in risk assessments. Storage drums should be kept sealed and below 40 °C to prevent headspace condensation and to reduce water loss through damaged seals. The release scenario matters: a pinhole leak at 210 bar generates a fine mist that can ignite if the fluid is grossly dewatered, whereas a low-pressure pool fire is typically extinguished by the water fraction. Fire-resistance claims for Hydetech 6012 should be documented by the supplier’s ISO 14935 spray-ignition test report rather than inferred from composition alone.
Comparative selection between Hydetech 6012, mineral-oil HLP 46, and phosphate ester HFDR is usually controlled by fire risk, component derating, and disposal cost. Hydetech 6012 has a higher density and higher specific heat capacity than mineral oil, which can reduce reservoir temperature rise but can also alter accumulator pre-charge behavior. The table below summarizes class-typical values; it is not a batch certificate.
| Property | Hydetech 6012 HFC | Mineral oil HLP 46 | Phosphate ester HFDR |
|---|---|---|---|
| Density at 15 °C (ISO 12185) | 1.08 g/cm³ | 0.86–0.88 g/cm³ | 1.10–1.14 g/cm³ |
| Kinematic viscosity at 40 °C (ISO 3104) | 46 mm²/s | 46 mm²/s | 46 mm²/s |
| Water content (ISO 3733) | 40 wt% | <0.05 wt% | <0.1 wt% |
| Fire-resistance class (ISO 6743-4) | HFC | H | HFDR |
| Typical system cleanliness after conditioning (ISO 4406:2021) | 17/15/12 | 18/16/13 | 17/15/12 |
Mineral oil offers the highest pressure-viscosity coefficient and the lowest water-handling burden, but it fails fire-resistant classification under ISO 6743-4 unless separated from ignition sources. Phosphate ester fluids provide fire resistance without water, but they require costly oil-resistant system materials and may carry higher disposal burdens due to phosphorus content. Hydetech 6012 occupies an intermediate position: fire resistance depends on water maintenance, while the base fluid cost and seal compatibility are less restrictive than phosphate esters in many industrial circuits.
Replacement without derating is not appropriate for every circuit. A mineral-oil ISO VG 46 pump may not sustain its rated pressure and speed when filled with a water-glycol fluid because the lubricating film thickness in hydrodynamic bearing surfaces is influenced by pressure-viscosity coefficient, not just kinematic viscosity. For a swashplate axial-piston pump running at 1800 rpm and 210 bar, published test data for Hydetech 6012 is limited; however, standard industry practice requires reducing the maximum continuous pressure by 10–20% or reducing speed until the pump manufacturer confirms operation with HFC fluids. In accumulator-backed injection molding machines with 1,800 kN clamp force, servo-valve gain settings should be re-tuned because the higher fluid density increases inertial response of the actuator and can cause overshoot in fast-injection sequences. The pilot-pressure filtration loop should use a 5 µm absolute element because water-glycol fluids tend to keep fine particulate matter in suspension. Systems designed originally for mineral oil should be evaluated according to ISO 4413:2010, and the pump inlet should be checked for NPSH margin under the density and vapor pressure conditions stated earlier.
Field audits in die-casting cells with 450-kN lockup and high-speed shot accumulators indicate that return-line water addition is often required when reservoir evaporative surface area exceeds 0.5 m² per 100 L of working fluid. A converted 1,800-kN injection molding machine showed a 15% increase in servo-valve command scaling after the fluid change, an integration adjustment rather than a product deficiency. Maintenance records from steel mill furnace-tilt systems show that 10 µm absolute return filters may reach differential pressure of 0.8 bar within 500 h after conversion as residual varnish and sludge are released; filters should be inspected at 500 h and not extended to the mineral-oil interval of 1,000 h until two consecutive elements demonstrate stable pressure drop. Optical particle counters calibrated per ISO 4406:2021 are recommended because water-glycol fluids can interfere with some optical sensors that are not temperature-compensated.
| Property | Standard / method | Value or acceptance criterion |
|---|---|---|
| Fluid classification | ISO 6743-4 | HFC |
| Viscosity grade | ISO 3448 | ISO VG 46 |
| Kinematic viscosity at 40 °C | ISO 3104:2023 | 46 mm²/s nominal |
| Water content | ISO 3733 | 40 wt% nominal; not below 35 wt% |
| Cleanliness target after commissioning | ISO 4406:2021 | 17/15/12 or better |
| Copper corrosion | ISO 2160 | 1a maximum |
| Rust protection, distilled water | ASTM D665A | Pass |
| Foaming tendency | ISO 6247 | Report sequence I, II, and III values |
Hydetech 6012 should not be mixed with mineral oil, phosphate ester, or water-in-oil emulsions; even small volumes of mineral oil can reduce phase stability and produce filter deposits. Operation should be limited to the supplier-declared temperature and water-content windows. If the reservoir is located in an atmosphere with relative humidity above 60%, headspace condensation should be drained and water content checked more frequently because the fluid can absorb atmospheric moisture and drift outside its specified composition. Disposal must follow local regulations for glycol-water mixtures; the product should not be discharged to municipal wastewater without treatment. The final qualification status should be confirmed by the component supplier’s written approval for Hydetech 6012 at the intended operating pressure and speed.
