VFFS Multi-Lane PTFE Coated Heat Seal Jaw | Stick Pack Sealing Bar

VFFS Multi-Lane PTFE Coated Metal Heat Seal Jaw Block For Food Stick Pack Pouches

 

Continuous high-speed stick pack production lines with multiple lanes often encounter troublesome sticking issues when using uncoated metal sealing components.

As plastic composite films melt under heating pressure, residual plastic materials easily stick to bare metal surfaces. This leads to incomplete sealing on finished sachets, wrinkled pouch edges, and frequent production halts for manual cleaning of sealing parts.

Our metal heat-sealing jaw solves this pain point via a dense food-grade PTFE coating applied on its working contact surface. It delivers consistent non-adhesive sealing performance during long-running mass production of all types of food plastic pouches.

Basic Product Technical Parameters

This PTFE-covered metal sealing jaw acts as the core heating component for multi-column VFFS and HFFS stick pack packaging machinery, suitable for 2 to 12 parallel production lanes.

 

• Base Raw Material: High rigidity alloy steel blank, stable thermal conduction capability, resistant to deformation under prolonged cyclic heating
• Surface Processing Technology: Multi-layer sprayed PTFE anti-stick coating, free of PFOA harmful substances, meets international food contact safety norms
• Structural Layout: Vertically striped contact plane, multiple precision reamed circular fixing holes, pre-reserved built-in slots for heating tube and temperature sensor installation
• Customization Scope: Adjust total length, body thickness, hole spacing, rib height, and coating coverage area based on customer equipment drawings or physical sample parts
• Compatible Equipment: Multi-channel sachet filling and sealing machines, continuous heat sealing production lines for powdered, liquid, and granular food strip pouches
• Manufacturer Info: Big Brother Cutting Tool, a reliable supplier of metal spare parts for VFFS packaging equipment, with more than 15 years of manufacturing experience

 

 

Core Functional Advantages

 

• Food-compliant PTFE coating prevents film adhesion effectively

Compact multi-layer PTFE coating avoids melted composite packaging film from adhering to hot metal surfaces. Film can detach smoothly after each heat pressing cycle, with no plastic residue accumulating to damage uniform sealing results during mass manufacturing.

 

• Solid alloy steel blank realizes balanced heat transfer across all lanes.

The whole jaw body is processed via integrated CNC cutting to eliminate internal material stress. Heat spreads evenly over the full sealing width, effectively eliminating cold sealing zones and inconsistent tightness between parallel production lanes, perfectly matching high-speed, large-volume food sachet processing.

 

• Heat-stable PTFE coating extends the service cycle of sealing parts

The PTFE surface layer maintains intact anti-stick performance under long-term working temperatures ranging from 180°C to 260°C. It resists coating peeling, discoloration, and aging even under a daily 24-hour non-stop packaging operation.

 

• Striped contact surface optimizes flatness of sealed pouch edges

Vertical strip texture distributes heat and mechanical pressing force evenly on thin plastic film materials. It generates tidy, wrinkle-free sealed edges and improves the overall appearance of retail-ready food pouches.

 

• Full-size custom solution fits global mainstream multi-lane packaging machines.

We can adjust jaw length, thickness, hole layout, and coating coverage to match both imported and domestic multi-column food packaging equipment. Small-batch trial orders and large-volume bulk wholesale are both acceptable.

 

Structural & Production Craft Details

 

• Integrated alloy steel blank with stable thermal performance

One-piece CNC forming removes internal stress inside the metal base, ensuring balanced heat distribution without local overheating after repeated high-frequency heat pressing cycles.

• Multi-pass food-safe PTFE spraying & curing craft

We adopt multi-time spraying and high-temperature curing to form a smooth, dense anti-stick surface layer. No PFOA harmful additives are added, fully satisfying hygiene control requirements for food processing workshops.

• Multi-position precision reamed circular fixing holes.

Each mounting hole is processed with strict dimensional tolerance, fitting standard fixing bolts installed on the machine heating blocks. Operators can finish quick assembly and precise positioning without offset during long-time reciprocating pressing.

• Pre-set built-in slot for heating component assembly

A reserved internal groove is designed to install heating tubes and temperature sensors, simplifying matching and assembly work on complete multi-lane VFFS heating modules.

Distinction Between PTFE Coated Metal Jaw & UPE Plastic Backing Liner

The PTFE-coated metal jaw serves as the core heating sealing body inside multi-lane packaging heat sealing assemblies, while green UPE plastic liners only function as auxiliary anti-slip backing pieces installed under the metal jaw.

 

1. The metal jaw undertakes heating work and directly completes heat pressing on food packaging pouches; UPE liners only provide anti-slip support without heating capacity.
2. This product takes alloy steel as its base material, with PTFE anti-stick coating sprayed on the surface; UPE liners are integrally molded from solid UHMWPE plastic without any surface coating layer.
3. The two accessories need to be assembled together on stick pack packaging machines to form a fully functional heat-sealing module.

Applicable Production Lines & Global Purchaser Groups

This PTFE-coated metal heat-seal jaw is widely purchased by food processing factories and mechanical spare parts distributors covering Southeast Asia, Europe, and North America:

 

1. Multi-column stick pack food manufacturers producing coffee powder, honey, oral liquid, seasonings, and single-serve snack sachets
2. VFFS and HFFS multi-lane strip bag packaging machine manufacturers and global spare parts wholesale suppliers
3. Processing workshops for disposable cosmetic, health care, and pharmaceutical food-grade sachets
4. OEM packaging equipment factories are in need of matched metal heat-sealing components to assemble full heat-sealing modules

 

You may also check our matching multi-column packaging round corner cutter for integrated sachet edge trimming production: Multi-Lane Packaging Round Corner Cutter

 

Strict Pre-delivery Inspection Standards

 

• Every batch of PTFE-coated heat-seal jaw blocks will pass comprehensive testing before packaging and shipment:
• Full dimensional calibration to check the tolerance of jaw length, thickness, and hole spacing
• Testing for PTFE coating uniformity, adhesive strength, and high-temperature aging resistance
• Flatness inspection of the striped contact surface to remove burrs and uneven coating areas
• Real heat sealing test using PE composite food film to verify residue-free non-stick effect

Frequently Asked Customer Questions

Q: Can this PTFE-coated metal jaw match my multi-lane VFFS stick pack food packaging machine?
A: The standard multi-hole layout fits most mainstream 2–12 lane stick pack production equipment. We can fully customize overall jaw dimensions and hole positions for special non-standard machine models.

Q: Does the PTFE coating meet safety standards for continuous food pouch production?
A: Sure. We apply PFOA-free food-grade PTFE spray coating that complies with global food contact safety standards, suitable for all food packaging processing scenarios.

Q: What is the maximum continuous working temperature the coated metal sealing jaw can withstand?
A: The PTFE coating maintains stable performance under sustained heating between 180°C and 260°C, with no peeling, discoloration, or loss of non-stick function.

Q: Do you accept small trial orders for equipment performance testing? How long is the production lead time?
A: Small trial batches are supported for clients to test actual sealing performance on their production lines. Standard-size sealing jaws are kept in stock for fast delivery; we will confirm exact manufacturing cycles for all customized orders in advance.

Inquiry Guidance

If you need bulk price quotations, physical product samples, or customized design schemes for VFFS multi-lane PTFE-coated heat-seal jaws, send your machine lane quantity and jaw dimension demands to us at any time.
As a professional manufacturer of packaging equipment spare parts, Big Brother Cutting Tool provides complete matched heat sealing module kits, including PTFE-coated metal sealing jaws, stainless steel seal holder strips, and UPE anti-stick backing liners, serving stick pack food packaging factories all over the world.
We reply to all customer inquiries within 12 working hours.

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