Frequently Asked Questions
Our manufacturing facility is directly located in Jing County, Hengshui City, Hebei Province, China.
Key parameters for moisture reduction include:
– Increasing feed pressure (adjustable range: 0.8–2.0 MPa)
– Activating membrane squeeze (secondary compression reduces moisture by 5–10%).
– Extending the air-blowing time via the PLC control system.
– Optimizing mesh size (800–1,200 mesh is recommended for fine particles).
The processing capacity of a JW filter press depends on the chamber volume, the number of filter plates, and the effective filtration area. We calculate capacity using the following formula:
Processing Volume (m³) = Chamber Volume × Cycles per Hour × Operating Time.
Selecting a model requires analyzing material properties (e.g., solids content and particle size distribution) and process requirements (e.g., open-discharge vs. closed-discharge design). Please contact our engineering team with your material specifications for a customized recommendation.
– Polypropylene (PP): Suitable for weak acids and alkalis (pH 1–12). Cost-effective. Temperature resistance up to 80°C.
– Rubber: Ideal for abrasive slurries (e.g., mining tailings) due to its high wear resistance.
– Stainless steel (304/316L): Resistant to highly corrosive media (e.g., chlorides and organic acids) with a temperature tolerance of up to 150°C.
JW provides material corrosion resistance test reports upon request for validation.
The lifespan of filter cloth depends on the characteristics of the material (e.g., viscosity and particle sharpness) and cleaning frequency. We recommend the following practices:
– Apply backflushing combined with ultrasonic cleaning to restore permeability.
– Use dual-layer composite cloths (e.g., polypropylene and polyester) in high-abrasion environments.
The standard replacement interval is 3–6 months. For enhanced anti-clogging performance, PTFE-coated filter cloths are available as an optional upgrade.
Our sample production time is estimated at approximately fifteen to twenty business days total.
Leakage: Check the alignment of the filter cloth edges, ensure the hydraulic pressure meets or exceeds the rated value (e.g., 25 MPa), and inspect the sealing surfaces for wear.
– Plate misalignment: Calibrate the levelness of the thrust plate, lubricate the guide rods, and troubleshoot the hydraulic cylinder synchronization, which may require recalibrating the displacement sensor.
Automatic filter presses feature:
– Fully automatic plate-shifting system (servo motor driven with positioning accuracy of ±0.5 mm).
– High-pressure washing arms for 360° online cloth cleaning.
– A smart HMI panel for presetting pressure, cycle time, and fault diagnostics.
Compared to manual models, automation reduces labor requirements by up to 90% and increases efficiency by over 30%.
Yes. Available solutions include:
– Steam-heated filter plates (temperature uniformity ±3°C).
– Stainless steel plates with EPDM seals (resistant up to 150°C).
– For aggressive media (e.g., hydrofluoric acid): PVDF-coated plates or titanium alloy construction.
Please provide the chemical composition of your process fluid for a customized anti-corrosion design.
Routine Maintenance: Replace hydraulic oil every 2,000 operating hours (ISO VG46 grade) and lubricate guide rods weekly with lithium grease.
Overload Protection: Avoid exceeding rated feed pressure; we recommend installing pressure sensors for automatic shutdown.
Corrosion Prevention: Flush chambers thoroughly with water after shutdown to prevent scaling and residue buildup.