A PP strap production line turns polypropylene granules into packing strap that holds pallets, cartons and bundles in place. For an overseas buyer, the value of the line depends on three things: strap quality, stable output and reliable after-sales support. This guide explains how the MOOGE PP strap band making machine works, which models are available and what to check before you send an inquiry.
MOOGE is based in Zhangjiagang, Jiangsu, China. The company has more than 20 years of R&D experience and builds machines in an 11,000 m² workshop. Every specification in this article comes from our current SJ-series product data.

SJ-Series PP Packing Strap Production Line, 30-250 kg/h Capacity

The MOOGE SJ-series is a complete PP strap production line for PP packing strap. Input capacity ranges from 30 to 250 kg/h, depending on the model. The line covers the full process: feeding, drying, melting, filtering, extrusion, cooling, stretching, heat setting, embossing and winding.
Strap manufacturers, packaging distributors and factories that make their own strap can all use this equipment. MOOGE designs the line around your output target and workshop space, so you do not pay for capacity you do not need.

Single, Double & High-Output PP Strap Extrusion Line for 5-19mm Straps

All three standard models make strap from 5 to 19 mm wide:

• SJ65/33 single strap: 30-40 kg/h, suited to a new plant or a first production line.
• SJ85/33 double strap: 60-80 kg/h, suited to growing strap businesses.
• SJ120/33 high-output model: 200-250 kg/h, suited to high-volume production.

The die mold sets the strap size and thickness, and both can be adjusted. Tell us your target width, thickness and roll size, and we will confirm the right PP strap extrusion line configuration.

Turn Virgin or Recycled PP Granules into High-Strength PP Packing Straps

 
The line accepts PP virgin granules or recycled PP granules. Virgin material gives a consistent base for premium strap. Recycled granules lower raw material cost, which matters in price-sensitive markets.
If you collect PP waste yourself, MOOGE can also supply the upstream equipment. A Waste PP Film/Bags Plastic Washing Line cleans PP film and bags. A Plastic Pelletizing Line then converts clean flakes into granules that feed the strap line. Clean, dry and uniform granules give the most stable extrusion, so material preparation deserves attention.

Fully Automatic PP Strap Making Machine with PLC Control and Auto Winder

Automation cuts labor cost and keeps strap quality consistent. On this line, a vacuum loader feeds material automatically, and an automatic winder machine rolls the strap to your specified size. A torque motor adjusts the winding speed. When a roll is full, the automatic weight system sounds an alarm and stops the winder.
The electric control panel controls the whole line. Buyers can choose a PLC touch screen, which lets operators monitor, control and adjust the process in real time.

PP Strap Extrusion Line: Extruder, Stretching, Embossing & Winding in One System

MOOGE supplies the machines as one matched system. The main units are:

• Vacuum loader and hopper dryer for feeding and drying.
• Single screw extruder, hydraulic screen changer and metering pump for melting, filtering and steady flow.
• Die mold, water cooling tank and haul-off machine for shaping and pulling the strap.
• Hot air circulation oven, stretching machine (one or two sets in series), embossing machine and tensile remove forming tank for strength and finish.
• Automatic winder machine and electric control panel for winding and control.

Buying the whole system from one factory avoids compatibility problems between machines from different suppliers.

Stable Strap Quality with Even Width, Good Straightness and Thickness Control

Buyers of strap care about straightness, equal width and even thickness. Several parts of the line work together to deliver this:

• The metering pump sends melt to the die at a constant, pulsation-free flow and pressure.
• The hydraulic screen changer filters impurities, so the melt stays clean and uniform.
• The stretching machine improves toughness and tensile strength with precise speed control.
• Heat setting in the tensile remove forming tank relieves internal stress and stabilizes strap dimensions.

We recommend testing a strap sample against your own quality standard before you place an order.

Low Power Consumption, High Automation and Higher Output Efficiency

Power cost is a real part of strap production cost. The line uses inverter speed control on the extruder motor and stretching machine. The hot air circulation oven has a double-layer body with an inner insulation layer, which reduces heat loss.
Installed power ranges from 45 kW for the single strap model to 100 kW for the SJ120/33. Compare these figures with the output of each model when you evaluate running cost. Ask any supplier for the installed power and the capacity of every line you compare.

Cut Scrap and Downtime with Hydraulic Screen Changer and Metering Pump

Scrap and stops cost money. The line addresses both in the design:

• The hydraulic screen changer replaces the screen quickly without stopping the extruder.
• The hopper dryer removes surface moisture at 80-120 °C, which helps prevent surface marks, brittleness and hydrolysis during extrusion.
• The screw and barrel use 38CrMnAlA steel with nitriding treatment, which extends service life.
• The metering pump gives uniform output thickness, so fewer rolls fall outside tolerance.

Strong, Tough PP Straps for Palletizing, Bundling and Heavy-Duty Packaging

The finished PP strap suits packaging, palletizing, bundling and heavy-duty packaging in logistics and industrial sectors. The embossing machine presses a pattern into the strap surface. This increases friction, improves strapping security and gives the strap a better appearance.
The final product is a high-strength, tough PP packing band that you can sell as manual strap or as strap for strapping machines. Confirm your target strap grade with your customers before you fix the line configuration.

Custom Layouts to Fit Your Factory Space and Target Capacity

MOOGE designs each PP strap production line around your factory area and final product needs. Our technical team creates the design and detailed drawings in-house. To get an accurate layout and quotation, send us:

• Raw material type (virgin or recycled PP) and its condition
• Target capacity in kg/h
• Strap width, thickness and roll size
• Available workshop length, width and height
• Local power supply details

How Does a PP Strap Production Line Work? Feeding, Drying, Extrusion, Stretching, Embossing, Winding

The process runs in a continuous sequence:

1. Feeding: the vacuum loader draws PP granules into the hopper dryer through a sealed hose.
2. Drying: the hopper dryer removes surface moisture.
3. Melting and filtering: the single screw extruder melts the material, and the screen changer removes impurities.
4. Extrusion: the metering pump delivers a steady flow to the die mold, which forms thick strap.
5. Cooling: the water cooling tank shapes and sets the strap, and the haul-off machine pulls it forward under controlled tension.
6. Stretching: the hot air circulation oven heats the strap, and the stretching machine improves strength and toughness.
7. Heat setting and embossing: the strap relieves internal stress, then the embossing machine adds the surface pattern.
8. Winding: the automatic winder machine rolls the finished strap.

Can a PP Strap Making Machine Use Recycled PP Granules? Yes, Virgin and Recycled PP Supported

Yes. The MOOGE line runs on virgin or recycled PP granules. The quality of the strap still depends on the quality of the granules, so follow these steps:

• Keep granules clean and free of foreign material.
• Keep the material dry. The hopper dryer helps, but very wet material lowers output.
• Use uniform granule size for smooth feeding and melting.
• Send MOOGE a material sample or photos so our engineers can advise on the process.

If your waste is bulky, such as woven bags or rigid scrap, a Plastic Shredder Machine reduces it to a size that washing and pelletizing lines handle well.

What Size PP Strap Line Do You Need? Models from 30 kg/h to 250 kg/h

Use the table below to compare the three standard models of our PP strap band making machine.

Model	Capacity (kg/h)	Strap Size (mm)	Installed Power (kW)	Area Required (m)
SJ65/33 Single Strap	30-40	5-19	45	25 × 4 × 4
SJ85/33 Double Strap	60-80	5-19	65	30 × 4 × 5
SJ120/33	200-250	5-19	100	35 × 5 × 5

 
Choose the model by your monthly strap demand, your budget and your workshop size. Start with a smaller line if you are entering the market. Choose the SJ120/33 if you already have steady orders. MOOGE can adjust the design to your actual factory layout.

PP Strap Band Extrusion Line Made in China with Schneider and Delta Electrical Components

 
Component quality affects uptime and spare part availability. This line uses:

• Schneider contactors, with a thermal relay to protect the motor
• Delta inverters on the stretching machine
• 38CrMnAlA steel for the screw, barrel and die mold, with nitriding or heat treatment
• A stainless steel water cooling tank with a liquid level controller
• A hardened embossing roller for long service life

The MOOGE company profile lists ISO, SGS, CE and FDA NOL certificates. Ask us which certificates apply to your model and your destination market, and we will provide the documents.

Factory-Direct PP Strap Machine Manufacturer with 20+ Years of Experience and 24/7 Technical Support

MOOGE is a manufacturer, not a trading company. Our team includes more than 100 production and service staff, and the company holds 35 authorized technical patents. Our technical support team is available 24/7.
When you compare suppliers of a PP strap production line, check these points:

• Ask for a machine running video. Our product page includes several strap line videos.
• Ask for a full parameter sheet with capacity, installed power and area.
• Ask for a strap sample test with your material.
• Confirm installation guidance, operator training and spare parts support.
• Confirm packing, shipping terms and export documents before payment.

Frequently Asked Questions

What strap width can the line produce?

All standard SJ-series models produce PP strap from 5 to 19 mm wide. The die mold sets width and thickness, and both are adjustable.

How much space does a PP strap production line need?

The single strap model needs about 25 × 4 × 4 m. The SJ85/33 needs 30 × 4 × 5 m, and the SJ120/33 needs 35 × 5 × 5 m. We can adjust the layout to your workshop.

Is the line fully automatic?

The line has automatic feeding, automatic winding and full-line electrical control. Buyers can choose a PLC touch screen for real-time monitoring and adjustment.

Can MOOGE customize the line?

Yes. We design the line around your factory area, target capacity and final strap requirements. Our technical team prepares the drawings.

What should I include in my inquiry?

Send your raw material type, target capacity, strap width and thickness, workshop size and local power supply. Photos or videos of your material also help.

Does MOOGE offer support after purchase?

Yes. MOOGE provides installation guidance, operator training and after-sales service, with 24/7 technical support.

Conclusion

A reliable PP strap production line gives you stable strap quality, controlled running cost and the flexibility to use virgin or recycled PP. The MOOGE SJ-series covers 30-250 kg/h, produces 5-19 mm strap and combines every process step in one matched system.
If you are planning a new strap plant or expanding an existing one, we can help. Contact MOOGE Recycling with your material, target capacity and strap requirements. Our team will reply with product details, a quotation, customization advice and technical support. You can also email sales@moogetech.com or message us on WhatsApp at +86 13584489215.