NTPJD-450 High Speed Sharp Bottom Paper Bag Machine with Window Function Main View

V-Bottom Paper Bag Machines

NTPJD-450 High Speed Sharp Bottom Paper Bag Machine with Window Function

NTPJD-450 High Speed Sharp Bottom Paper Bag Machine with Window Function

(985) | In Stock

High Efficiency: Reduces cycle time by 30% with servo-motor drive.
Precision: ±0.01mm repeatability for complex forming.
Certified: CE & ISO 9001 Compliant standards.
Customizable: Worktable size and stroke tailored to needs.

Produce V-bottom food bags at 400pcs/min with the NTPJD-450. Supports OPP/CPP window film, ideal for bakery and KFC packaging. Handles 35-80gsm paper.

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Technical Specifications

Parameter	Data
Model	NTPJD-450
Bag Type	Sharp Bottom / V-Bottom
Cutting Bag Length	100 - 450 mm
Bag Width	70 - 250 mm
Gusset (Insert) Size	20 - 120 mm
Paper Thickness	35 - 80 g/m²
Max Speed	400 pcs/min
Film Material	OPP / CPP
Film Width / Diameter	50-200 mm / 450 mm
Paper Roll Width	200 - 740 mm
Total Power	15 KW
Machine Weight	3000 kg
Dimensions (L×W×H)	7500 × 2000 × 1700 mm

Product Description

The NTPJD-450 is a specialized High-Speed Sharp Bottom (V-Bottom) Paper Bag Machine, designed for the mass production of food packaging. Unlike standard machines, this model operates at an impressive speed of up to 400 bags per minute, making it one of the most efficient solutions for the bakery and fast-food industries.

Ideally suited for producing KFC-style french fry bags, bread bags, and snack bags, the NTPJD-450 supports lightweight paper (35-80gsm). It also features a built-in Film Unwinding Unit, allowing you to create paper bags with transparent OPP/CPP windows to showcase the food inside.

Key Features

1. Ultra-High Speed Production: Engineered for volume, this machine runs between 50-400 pieces per minute. This massive throughput is perfect for fulfilling large orders from fast-food chains.

2. Window Patching Capability: The machine includes a specialized film feeding system for OPP/CPP rolls (0.025-0.045mm thickness). It can automatically cut and seal the plastic film onto the paper to create "Window Bags" favored by bakeries.

3. Versatile Size Range: It handles a wide range of bag sizes, from small snack bags (70mm width) to long baguette bags (450mm length), with adjustable gussets from 20mm to 120mm.

4. Precision Control: The machine utilizes a 380V 3-phase electrical system with advanced servo controls to ensure accurate cutting lengths and stable film tension, even at top speeds.

Want to make window bread bags?

Send us your bag design. We will demonstrate how the NTPJD-450 applies the film and forms the bag at high speed.

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FAQ: NTPJD-450 High Speed Sharp Bottom Paper Bag Machine with Window Function

Yes. The NTPJD-450 is equipped with a specific unit for handling OPP or CPP rolling film. It can laminate a clear strip of film onto the paper during the forming process, creating the popular "peek-a-boo" window bags used for bread and sandwiches.

This machine produces V-Bottom (Sharp Bottom) bags, which look like an envelope at the base. They are cheaper to produce and run at much higher speeds (400 pcs/min) compared to Square Bottom bags. They are ideal for lightweight items like fries, churros, or single pastries.

The machine is optimized for thinner paper grades ranging from 35 to 80 gsm. This includes Kraft paper, greaseproof paper, or coated paper typically used in the fast-food industry.

Yes, you will need an air supply with a working current of ≥0.12m³/min at 0.6-1.2MPa. This pneumatic power is used to assist the mechanical forming and cutting operations for stability at high speeds.