Full-Auto Casting Machine On Seal Packing In Filter Element

As a specialized Chinese manufacturer and direct supplier of Full-Auto Casting Machine On Seal Packing In Filter Element for filter elements, Pulan offers high-quality, high-efficiency dispensing solutions. The equipment supports wholesale and custom orders, offers optional CE certification, features an adjustable dispensing rate of 5–30 g/s, and accommodates circular dispensing paths with a maximum diameter of Φ450 mm; the dispensing head features automatic positioning and self-cleaning capabilities. Products are available in stock, with samples and warranties provided, making us a trusted choice for your procurement needs.

What is a Full-Auto Casting Machine On Seal Packing In Filter Element?

This is an automated dispensing system designed for the production of hydraulic filter element seal gaskets, comprising a material tank, metering pump, dispensing head, and rotary table. The PU-20F Full-Auto Casting Machine On Seal Packing In Filter Element, launched by Pulan, utilizes computer programming and automatic constant-temperature control to achieve precise PU material feeding, circular dispensing, automatic cleaning, and automatic dispensing head positioning. It features an adjustable dispensing rate of 5–30 g/s, stable temperature control, and reliable operation. This machine significantly enhances production efficiency and consistency, making it an excellent choice for your procurement needs.

Equipment Purpose and Composition

The Full-Auto Casting Machine On Seal Packing In Filter Element for filter element gaskets is an automated system designed for the gasket dispensing process used in hydraulic filter elements. It comprises material tanks (Tanks A1, A2, and B, plus a cleaning tank), a dispensing head, a rotary table, mold modules, a touchscreen interface, and pneumatic cylinders. Utilizing computer-based programming and an automatic constant-temperature control system, the machine evenly dispenses polyurethane (PU) material into gasket molds—executing an automatic circular dispensing path—to enable the efficient production of filter gaskets.

Technical Specifications Table

Basic Principles and Production Process

Basic Principles

The Full-Auto Casting Machine On Seal Packing In Filter Element for filter element gaskets utilizes a low-speed, high-precision metering pump and a precision drive system. Components A and B are pumped from constant-temperature mixing tanks and delivered via high-pressure hoses to a dispensing head. The material is then evenly cast into the mold along a circular path on an automatically controlled work platform to form the gasket.

Production Process Flow

Raw Material Preparation: Add A and B adhesives into their respective tanks, then activate heating and stirring systems to maintain constant temperature control.
Circulation & Return Flow: Start the metering pump circulation system to ensure stable adhesive flow inside the pipeline and eliminate air bubbles.
Flow Calibration: Measure the single-shot output of A and B adhesives separately, and adjust pump frequency to achieve the target mixing ratio.
Mixing Head Installation: Install the mixing components on the dispensing head, including the stirring unit, mixing sleeve, and funnel assembly.
Pre-Casting: Activate the pre-casting function to fill the internal cavities of the dispensing head and ensure stable initial flow.
Automatic Casting: Place the mold on the turntable and start automatic mode. The machine head moves along the preset circular trajectory while dispensing mixed adhesive evenly to fully cover the sealing gasket groove.
Mold Replacement: Manually remove the finished mold and place a new one, enabling continuous production operation.
Automatic / Manual Cleaning: After reaching the preset production volume, the system automatically or manually activates the cleaning program (air purge and liquid flushing alternately) to prevent adhesive curing and clogging.

Product Features

1. Computer-controlled operation: Features a touchscreen interface for intuitive parameter setting and supports automatic programming for circular dispensing paths.
2. Stable and precise metering: Utilizes a low-speed, high-precision metering pump along with precision drive and display systems to ensure accurate, controllable dispensing volumes.
3. Automatic constant-temperature control: Equipped with a triple-walled stainless steel mixing tank featuring automatic constant-temperature heating to prevent PU adhesive from solidifying inside the tank.
4. Precision recirculation adjustment: Automatic three-position switching (dispensing, recirculation, and cleaning) ensures seamless operation without lag or overshoot.
5. Automatic displacement after dispensing: The dispensing head automatically shifts 450mm after the process completes, facilitating easy mold loading and unloading.
6. Automatic circular dispensing: Compatible with circular molds up to Φ450mm, accommodating a wide range of sizes.
7. Automatic cleaning function: Program-controlled automatic cleaning of the dispensing nozzle (combining air purge and solvent flush) prevents adhesive clogging.
8. Automated parameter control and alarms: Digital control of temperature, pressure, and dispensing volume ensures stable and reliable equipment operation.

Installation Notes

Site Selection: Install the Full-Auto Casting Machine On Seal Packing In Filter Element in a suitable working area or hydraulic filter element processing workshop.
Unpacking & Handling: Remove the packaging box and dust-proof film, and use a forklift to move the machine to the designated fixed position.
Required Clearance: Maintain at least 1 meter clearance from surrounding walls, and at least 1.5 meters in the front operating area.
Power Connection: Use a 380V/50Hz power supply with proper grounding protection. Recommended power cable specification: 3+1+1×8mm².
Air Supply Connection: Required air pressure is 0.5–0.6 MPa. If compressed air is not available, a 2.2kW air compressor with a 3m³ air tank should be equipped.
Tank Cleaning Before Use: A small amount of dioctyl phthalate residue may remain from factory testing. Clean the system by circulating 3–5 kg of raw material.
Cooling/Heating Medium Filling: Fill the water bath / chiller / tank jacket with a saponified water solution mixed at a ratio of 1:15–1:20 to prevent freezing and corrosion.

FAQ

Q1: What products is the Full-Auto Casting Machine On Seal Packing In Filter Element suitable for?
A: It is suitable for sealing gasket adhesive casting in hydraulic filter elements.

Q2: What are the main components of the machine?
A: It mainly consists of A1 tank, A2 tank, B tank, cleaning tank, dispensing head, turntable, mold fixture, touch screen, cylinders, and metering pumps.

Q3: Can it cast circular sealing gaskets? What is the maximum size?
A: Yes, it supports automatic circular casting with a maximum diameter of Φ450mm.

Q4: Can the dispensing volume be adjusted?
A: Yes. The total dispensing volume is adjustable within the range of 5–30 g/s by adjusting the metering pump frequency.

Q5: How is adhesive curing inside the pipeline prevented?
A: The machine features a constant temperature control system (tank heating and pipeline insulation) and an automatic cleaning function to flush the dispensing head after shutdown.

Q6: Is the operation complicated?
A: No. It uses computer-controlled programming and a touch screen interface. Parameter settings are intuitive, supports circular path programming, and enables one-click automatic production.

Q7: What safety protection features does the equipment have?
A: It is equipped with an emergency stop button, safety guard interlock, and grounding protection. Safety rules also require power-off maintenance—operation during maintenance is strictly prohibited.

Q8: How should the machine be handled during long-term shutdown?
A: A full system cleaning is required: discharge residual material, circulate cleaning fluid (dioctyl phthalate : ethyl acetate = 1:1), then fill with pure dioctyl phthalate for soaking before powering off air and electricity.

Q9: What should be done if the B rotary valve of the dispensing head is stuck?
A: This is usually caused by crystallization due to moisture absorption in B material. Stop the B metering pump, disassemble the B valve body, clean it thoroughly with cleaning fluid, apply grease, and reinstall it.

Q10: How to adjust when the casting ratio is off?
A: Check the pressure difference between raw material circulation pressure and feeding pressure. If A pressure difference > 0.2 MPa or B > 0.09 MPa, adjust the pressure regulating valve on the head or replace the orifice plate of the throttle hole.