Paste & Cartridge Filling Machine: Specs & Price Guide 2026
Paste & Cartridge Filling Machine: Specifications & Price Guide 2026
Cartridge, sausage and pail fillers with press-out feed. Discover how hydraulic ram presses and volumetric piston fillers help keep extrusion bubble-free.
In the adhesives and sealants industry, mixing the product is only half the battle. Once a double planetary mixer or butterfly kneader finishes processing a 1,000,000+ cPs batch of structural silicone, process engineers face a critical logistical bottleneck: "How do we extract this non-flowing paste from the tank and precisely dose it into retail cartridges without trapping air bubbles or destroying our transfer pumps?"
For the press-out machine itself, see our hydraulic discharge press guide. Gravity feeding is impossible, and standard centrifugal or gear pumps will simply cavitate and burn out. The POLYC downstream packaging solution separates the process into two synchronized stages: Hydraulic Ram Extrusion and Volumetric Filling. First, a heavy-duty press drives a precisely machined platen into the mobile mixing tank, pushing the paste out through a bottom valve. This feeds the paste directly into an automated cartridge or foil sausage filling machine, where pneumatic pistons dose the exact volume while automatically inserting the plunger or clipping the foil.
By maintaining constant, bubble-free pressure from the mixing tank straight into the packaging container, POLYC turnkey filling lines prevent product wastage and eliminate manual scooping.
POLYC High-Viscosity Extrusion Line: A mobile compounding tank docked beneath a hydraulic ram press, feeding bubble-free paste directly to downstream packaging workstations.
Hydraulic Press & Filling Machine Formats
| Equipment Type | Compatible Tank Size | Max Extrusion Pressure | Filling Format | Throughput Capacity |
|---|---|---|---|---|
| Hydraulic Lifting Discharge Press | On request | On request | Direct pipeline feed | On request |
| Semi-Automatic Cartridge Filler | On request | On request | Plastic/Alu Cartridges | On request |
| Cartridge / Sausage Filler | On request | On request | Cartridges / Foil Sausages | On request |
| Coating Filling Machine | On request | On request | Pails / Drums | On request |
*Note: Platen seals are customized using high-grade Viton or PTFE-encapsulated O-rings based on solvent and chemical compatibility. Contact our engineering team for exact throughput and capacity configurations tailored to your materials.
How to Select Your Packaging & Extrusion Line
Scenario A: Silicone & Acrylic Cartridges
Process Profile: High-volume retail packaging of sanitary silicones, caulks, and liquid nails into rigid HDPE cartridges requiring plunger caps.
Optimal Configuration: Hydraulic Ram Press + Automated Cartridge Filler. The system automatically feeds empty tubes, injects exact volumes, inserts the plunger, and expels trapped air.
Scenario B: MS Polymers & PU Foil Sausages
Process Profile: Professional-grade polyurethane mastics and structural adhesives packaged in eco-friendly aluminum foil film (chubs) for caulking guns.
Optimal Configuration: Hydraulic Ram Press + Automatic Sausage Form-Fill-Seal (FFS) Machine. Forms the tube from flat film, fills volumetrically, and clips both ends securely.
Scenario C: Bulk Putty & Pails
Process Profile: Heavy wall putties, thermal greases, or base resins shipped B2B in large plastic/steel pails or drums.
Optimal Configuration: Heavy-Duty Hydraulic Press + Gravimetric Filler. The press pushes thick paste through a large manifold, while load cells under the pail control the cut-off valve.
Scenario D: Electronic & Precision Syringes
Process Profile: Micro-dosing two-part (A/B) epoxy resins or CPU thermal compounds into dual-barrel plastic syringes.
Optimal Configuration: Precision Lab Press + Servo-Driven Plunger Filler. Reduces micro-bubbles and ensures reliable multi-gram volumetric ratios.
High-Viscosity Extrusion & Packaging Ecosystem
Ram Presses (Extruders)
Heavy-duty hydraulic gantries that force non-flowing pastes out of mixing vessels.
Mixer Integration
Directly docking mobile vessels from double planetary and butterfly mixers.
Piston Filling Lines
Volumetric dosing systems that index, fill, and cap plastic cartridges or sausages.
Turnkey Plants
Fully enclosed extraction and packaging systems integrated seamlessly with the mixing process.
Engineering Architecture: Achieving Bubble-Free Extrusion
1. The Hydraulic Platen (Wiper Seals)
The extrusion platen is a heavy steel disc engineered to match the internal diameter of the mixing tank. Its outer edge is fitted with dual elastomer O-rings (typically Silicone or Viton). As hydraulic pressure drives the platen downward, these rings create a squeegee effect against the tank walls, scraping the tank wall clean and leaving the tank ready for the next batch.
2. Vacuum Exhaust Valves
When the platen first enters the tank, it traps a layer of atmospheric air between the metal plate and the paste surface. If pushed down, this air would be injected into the product. POLYC platens feature an integrated exhaust mechanism. The platen lowers until it touches the paste, forcing the trapped air out. Once sealed, the valve shuts, ensuring the paste is extruded smoothly.
3. Volumetric Piston Dosing
The ram press provides the feeding pressure; the filling machine determines the exact volume. Automated cartridge fillers use a pneumatic volumetric piston. As the piston pulls back, it draws pressurized paste from the manifold. As it pushes forward, it dispenses the exact volume into the empty cartridge without messy overflows.
What Determines the Price of a Filling System?
1. Extrusion Pressure Capacity
Basic caulks require low pressure. Pressing thick thermal grease or butyl rubber out of a large tank requires high-pressure hydraulic packs and a heavily reinforced H-frame steel gantry to prevent structural warping, representing a significant capital upgrade.
2. Degree of Automation
A semi-automatic filler where an operator manually places and removes cartridges is very affordable. A fully automated rotary system that sorts empty tubes, fills, and inserts plungers automatically requires advanced engineering and PLC integration, increasing the cost.
3. Twin vs. Single Manifold
High-output factories utilize twin-head fillers. The ram press extrudes into a Y-shaped manifold, feeding two automated filling stations simultaneously. This effectively doubles throughput but increases the cost of the filling machinery.
4. Plunger Exhausting Technology
Trapping air beneath the plastic plunger will cause the cartridge to ooze out later. Premium fillers feature sophisticated exhausting stations during plunger insertion, utilizing precision pneumatics to help ensure an air-free seal.
Why Source Your Extrusion & Packaging Line from POLYC?
POLYC's 9,000 m² manufacturing base in Wuxi.
🏭 Real Direct Factory Integration
A filling machine must perfectly sync with the hydraulic press. Shanghai Polyc Technology Co., Ltd. manufactures the mixers, the hydraulic presses, and the automated filling lines inside our wholly-owned 9,000 m² Wuxi plant. You get a single, fully integrated system tested comprehensively before shipment.
🤝 3-Year Global Warranty
We back our equipment with a 3-Year Global Warranty on the complete unit. Our engineers provide robust technical support to ensure your automated line maintains high uptime.
🧪 Tank & Seal Customization
If you already own mixing tanks, we can custom-machine our hydraulic platens and Wiper O-rings to match your exact tank diameter. Send us your tank blueprints, and our engineers will ensure the platen scrapes the tank wall clean.
Ready to Automate Your Cartridge Packaging?
Share your product viscosity (cPs), tank dimensions (L), container format (Cartridge/Sausage/Pail), and required capacity. POLYC engineering will recommend the exact press and filler combo and quote within 24 hours.
Frequently Asked Questions
Why can't I use a gear pump or progressive cavity pump instead of a Ram Press?
How does the machine avoid trapping air in the cartridge?
What happens if the mixing tank isn't perfectly round?
Can one filling machine do both plastic cartridges and foil sausages?
What viscosity can the press-out machine handle?
What is the warranty on the filling machine?
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