Hot Melt Sealing Machine

Hot Melt Sealing Machine

Smart Semi-Automatic Vertical Continuous Large Bag Band Sealer 350LP | Electric Heat Coding Printing Sealing Machine
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Product Introduction

hot melt sealing machine

 

hot melt sealing machine

Heavy-duty vertical band sealer with dual-motor sync and integrated coding-seals jumbo bags up to 100×100cm and 50kg with pinpoint accuracy, one pass.

 


 

Technical Parameters

Parameter Specification
Model Smart Semi‑Automatic Vertical Band Sealer 350LP
Sealing Speed 0 – 15 m/min (adjustable)
Sealing Width 10 mm
Sealing Height Range 100 – 1000 mm
Max Bag Size 1000 × 1000 × 20c
Conveyor Load Capacity 30 kg / 50 kg (model dependent)
Temperature Range 0 – 300℃ (dual-zone PID control)
Voltage 220V / 50-60Hz
Installed Power 1500 – 1750 W
Machine Dimensions (L×W×H) 2160 × 620 × 1540 mm
Machine Weight 118 – 125 kg
Sealing Belt Specs 1450 × 18 × 0.22 mm (PTFE coated)
Conveyor Belt Specs 3300 × 320 × 2 mm
Heating Tube 350W × 4 (150 × 10mm each)
Motor 24V / 200W / 30K

Product Features

Zero-Misalignment Sealing – Even on Jumbo Bags

Traditional sealers rely on mechanical gears and chains that wear out, causing crooked seals on large bags. Our gear motor + stepper motor dual-drive system synchronizes upper and lower belts electronically-not mechanically. The result: dead-straight, consistent seals every time, with dramatically fewer rejects and less downtime.

 

 

 

 

Built for Heavy-Duty Industrial Environments

Seals bags weighing up to 50kg-ideal for:

25–50kg flour, sugar, grain, and feed bags

Chemical powders, fertilizers, and resin pellets
The vertical orientation prevents spills from liquids or fine powders, keeping your work area clean and safe.

Versatile Material Compatibility

Dual PID controllers deliver stable heat from 0–300℃, so you can switch between:

PE, PP, laminated films

Mylar, cellophane, and other heat-sealable thermoplastics
Adjustable pressure rollers and PTFE non-stick belts ensure a strong, wrinkle-free seal on every material.

Auto hot melt sealing machine

 

One Machine, Two Jobs – Seal & Code Simultaneously

 

Eliminate separate printing steps. Built-in coding options let you print batch numbers, expiry dates, or lot codes directly on the seal line during sealing:

Hot‑stamp coding – crisp 2-line text (up to 20 characters)

Inkjet printing – high-speed variable data
No extra equipment, no extra labor.

 

Product Applications

 

Industry Specific Products
Food Processing 25kg/50kg flour, sugar, rice, frozen foods, spices, coffee
Agriculture Seed bags, animal feed, grain, fertilizer
Chemicals Powdered chemicals, detergents, resins, pigments
Construction Materials Cement, sand, gypsum, plaster bags
E-Commerce Fulfillment Heavy-duty shipping pouches, bulk mailing bags

Product Components

Component Function
Dual-Motor Drive System Gear motor + stepper motor for electronic belt synchronization
Digital PID Controllers Dual-zone independent temperature management (0–300℃)
PTFE Sealing Belts Non‑stick woven belts for clean, consistent seals
Motorized Conveyor Speed‑matched to sealing rate; height‑adjustable stand
Hot‑Stamp / Inkjet Printer Optional integrated coding unit for batch/date/line printing
Knurled Pressure Rollers Adjustable pressure for varying bag thickness
Heating Tubes 350W × 4 ceramic‑insulated elements
Emergency Stop & Safety Guard Immediate shutdown and operator protection

 

Quality Control & Manufacturing Process

Three-Phase Quality Assurance:

Incoming Materials Inspection – All motors, controllers, and heating elements verified before assembly

In-Process Testing – Each assembly stage checked for alignment, belt tension, and electrical safety

Final Factory Testing – Full operational test with sample bags of varied sizes and materials

Manufacturing Standards:

ISO 9001 certified production processes

CE certified electrical systems

Premium component sourcing for long‑term reliability

FAQ 

Q: What is the maximum bag size and weight this machine can handle?
A: Up to 100×100cm bags, with conveyor supporting 30–50kg loads depending on model.

Q: Can it seal liquid-filled or powder-filled bags?
A: Yes-the vertical orientation is specifically designed for liquids, powders, and granular products that would spill in horizontal sealers.

Q: How does the dual-motor system improve sealing quality?
A: It synchronizes upper and lower belts electronically, eliminating the misalignment common with mechanical chain/gear drives-critical for large bags where even slight drift causes crooked seals.

Q: What types of coding/printing are available?
A: Options include hot‑stamp coding (2 lines, up to 20 characters/line) for batch/date, and inkjet printing for high-speed variable data.

Q: What materials can this machine seal?
A: PE, PP, laminated films, cellophane, Mylar, and most heat‑sealable thermoplastics.

Q: What maintenance is required?
A: Regular cleaning of PTFE sealing belts; periodic checking of belt tension and replacement of heating tubes (typical lifespan 2000+ hours).

Q: Can the sealing height be adjusted for different bag sizes?
A: Yes-the conveyor stand is height‑adjustable from 100 to 1000mm, and the pressure rollers adjust automatically for varied bag thickness.

Q: What is the typical ROI period?
A: Most customers achieve ROI within 6–12 months through reduced rejects, eliminated secondary coding steps, and increased packaging line speed.

 
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