Wenzhou Snda Machinery Co., Ltd · Dongshan Industrial Zone, Ruian City, Zhejiang Province, China [email protected] +86-577-65165096 WhatsApp +86 158 5856 3760
Paper Bubble Making Machines

Kraft Paper Bubble Making Machine

The SD-PB600 converts a reel of kraft paper into embossed bubble cushioning paper in a single pass. The machine uses vertical upper and lower concave-convex rollers to press semi-circular, wave, three-dimensional hexagon, or four-pointed star patterns into the paper. This creates a paper-based cushioning material that can replace plastic bubble wrap in e-commerce and industrial packaging, with the option to laminate a soft white backing layer. The process is continuous, so a packaging producer can make its own protective paper instead of buying finished rolls.

  • Replaces plastic bubble wrap with a paper cushion that is recyclable and accepted by retailers restricting plastics
  • Unwinding, embossing, and rewinding happen in one process so one operator can run the line
  • Working speed is adjustable from 0 to 50 m/min so output can be matched to downstream demand
  • Automatic meter counting stops the machine at the set length and keeps roll lengths consistent
  • Converting your own kraft reels removes the margin paid to a paper bubble supplier
Problems It Solves

Why Buyers Choose It

  • Plastic cushioning is being refused by retailers and end customers in export markets
  • Bought-in paper bubble carries a converter margin and long replenishment lead times
  • Manual wrapping of fragile goods is slow and inconsistent between operators
  • Roll length variation causes short rolls and customer complaints
Who It Is For

Who Runs This Machine

  • Packaging converters that already buy kraft paper in reels and want to add a cushioning product
  • Paper mills and trading companies adding a value-added converting step
  • Fulfilment operators packing several thousand fragile orders a day
Application

Where This Machine Is Used

  • Protective packaging producers making paper bubble rolls for e-commerce fulfilment centres
  • Packers protecting electronics, glassware, and ceramics that scratch easily in transit
  • Converters supplying paper bubble cushioning to furniture and appliance manufacturers
  • Export packers replacing imported plastic bubble film with a locally converted paper cushion
Embossed kraft paper showing semi-circular ball pattern and three-dimensional hexagon structure
Embossed kraft paper showing semi-circular ball pattern and three-dimensional hexagon structure
Technical

Features And Specifications

Technical features

  • Uses vertical upper and lower concave-convex rollers for embossing
  • Embossing patterns include semi-circular ball, wave, three-dimensional hexagon, four-pointed star, and custom options
  • Pressure adjustment via screw pressurization or reducer pressurization
  • Frequency conversion speed regulation from 0 to 50 m/min
  • Main motor driven through an inverter for stepless speed control
  • Automatic ultrasonic web guide controller keeps the unwinding web centred
  • Web tension held by magnetic powder brake and clutch
  • Automatic meter counting device stops the machine when the set length is reached

Specifications

Machine modelSD-PB600
Machine working speed0-50 m/min adjustable
Unwinding shaft3 inch inflatable air shaft
Power supply380 V 3 phase or to customer requirement
Module roller specificationsΦ380-420 × 1400-1600 mm
Process

How The Machine Runs

Step 1Load a kraft reel up to 1200 mm diameter and 1 ton onto the inflatable air shaft
Step 2Guide the web with the ultrasonic web guide controller
Step 3Press the embossing pattern using vertical upper and lower concave-convex rollers
Step 4Rewind to the set length with automatic meter counting
Step 5Optional roll to sheet cutting for finished pads

Materials

  • Kraft paper reels from 60 gsm minimum
  • Optional soft white paper backing layer for laminated bubble liner
  • Wrapping paper and shock absorbing paper

Quality Control

  • Web guide and magnetic powder brake keep tension stable so embossing depth stays even across the reel
  • Meter counter verifies finished roll length before the roll leaves the machine
  • Machines are test run with customer paper before shipment

Customisation

  • Embossing roller patterns can be customized to match your design requirements
  • Power supply built to the voltage and frequency of the destination country
  • Rewinding shaft supplied in 1, 1.5, 2, or 3 inch to suit your core stock
  • Roll to sheet cutting unit added inline on request

Certifications

  • ISO9001:2000 certificate obtained in 2005
  • CE certificate obtained in 2006
Comparison

How It Compares

Buying finished paper bubble rollsConverting in house removes the supplier margin but you carry the kraft reel inventory and the machine investment
Plastic bubble wrap machinesPaper bubble is recyclable and accepted where plastics are restricted, though it is heavier per square metre than air-filled film
Paper Bubble Cutting MachineThis machine forms the embossed bubble web; the cutting machine converts finished bubble paper into sheets or pads
Use Guide

Running It On Your Floor

  1. Load a kraft reel up to 1200 mm diameter and 1 ton onto the inflatable air shaft
  2. Set the target roll length on the meter counter before starting the run
  3. Start slow and raise speed with the inverter until the web tracks steadily
  4. Check embossing depth and pattern clarity on the first metres before committing the reel
  5. Keep the embossing rollers clean of paper dust to protect the cutting edge
FAQ

Kraft Paper Bubble Making Machine FAQ

What paper weight can the machine run

It is designed for kraft paper from a minimum of 60 gsm.

How fast does it run in production

Working speed is adjustable from 0 to 50 m/min; the practical rate depends on paper weight and how steadily the web tracks.

What power supply do you build it for

Standard is 380 V three phase, and we build to the voltage and frequency of your country on request.

What is the footprint and weight for installation planning

The machine is 2600 x 1350 x 1300 mm and weighs 1500 kg, so plan a level floor and access for a forklift.

Can it cut finished paper bubble into sheets

Roll to sheet cutting is an option on this machine and it can also be matched with our paper wrapper.

Do you hold quality certificates

Wenzhou Snda Machinery holds an ISO9001:2000 certificate obtained in 2005 and a CE certificate obtained in 2006.

Related Reading

Guides On This Material

Quote The Kraft Paper Bubble Making Machine

Send your paper or film specification and target output. We will confirm the model, the lead position and the price.