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First in India · PM 3000 Series

E-commerce mailer
bag machine.

The PM 3000 produces peel & seal paper mailer bags for e-commerce shipping — with inline 2 to 4 colour flexographic printing, hot-melt sealing strip and cold glue side sealing. A complete bag, printed and ready to dispatch, in a single pass.

First developed in India Fastest mailer machine ever built Cold glue technology Tamper-proof Plastic-free
Prakash PM 3000 e-commerce mailer bag making machine
0
Bags / minute
0mm
Max bag length
2–4
Colour inline flexo
1st
Of its kind in India
Why paper mailer bags

From plastic poly-mailers to sustainable paper pouches.

E-commerce is the fastest-growing packaging segment in India, and brands are under pressure to move away from plastic. The PM 3000 produces strong, printable, peel & seal paper mailers — the direct replacement for the poly-mailers used by Amazon, Flipkart, Myntra, Meesho and D2C brands.

Stack of finished kraft paper e-commerce mailer bags produced on the PM 3000

Complete mailer in a single pass

Roll in, finished mailer bag out. The PM 3000 unwinds the paper roll, prints your brand, applies the hot-melt peel & seal strip with release tape, cold-glues the side seam, forms, cuts and stacks — in one continuous operation. No secondary printing, no offline gluing, no manual finishing.

Close-up of peel and seal release tape strip on a kraft paper mailer bag

Tamper-proof peel & seal closure

The machine fits two hot-melt release tapes onto every bag, giving a truly tamper-proof, single-use closure. Once peeled and sealed, the bag cannot be reopened without visible damage — a critical requirement for e-commerce, quick commerce and high-value shipments. The same closure your customers expect from a plastic poly-mailer, now on paper.

Diagram of a printed peel and seal paper mailer bag with release tape and barcode

Inline 2 to 4 colour flexo printing

Offered with 2, 3 or 4 servo-driven flexographic stations — each with closed-chamber doctor blades and double-diaphragm ink re-circulation. Print your customer's brand, courier instructions, address window, full-colour logos and barcodes — inline, at full machine speed. A separate provision is included for a variable-data printer for serialised AWB / order numbers.

Built for e-commerce volumes

Engineered for continuous, high-speed production.

Every module on the PM 3000 is built for the volume, accuracy and uptime that e-commerce fulfilment partners demand.

Fastest in its class

300 bags per minute — the fastest e-commerce mailer bag machine ever built. Sustained full-servo speed for fulfilment-scale volumes.

Tamper-proof closure

Hot-melt with two release tapes per bag. Once sealed, the bag cannot be opened without visible damage — safe for high-value shipments.

2 to 4 colour flexo inline

Choose 2, 3 or 4 servo-driven flexo stations with closed-chamber doctor blade, hot-air and IR drying, and water-based inks — food-safe and eco-friendly.

Cold glue side sealing

Servo-driven cold glue technology — faster, cheaper, simpler and stronger than heat-seal lacquer. The paper tears before the seam fails.

Closed-loop tension

Load-cell-based automatic tension control on infeed and outfeed holds web tension constant from full roll to core.

15" touchscreen HMI

Mitsubishi PLC with 15-inch HMI controls speed, register, glue timing, kicker batch and recipes — from a single screen.

A Prakash first

The first — and fastest — e-commerce paper mailer bag machine ever built.

When Indian e-commerce brands started looking for a paper alternative to plastic poly-mailers, Prakash was the first manufacturer in the country to engineer a purpose-built machine for it. At 300 bags per minute, the PM 3000 combines peel & seal hot-melt technology, inline flexographic printing and cold glue sealing into a single continuous line. Built in Faridabad, exported worldwide.

Breakthrough sealing technology

Cold glue sealing — superior to heat-seal lacquer.

Most paper mailer machines still rely on coated paper plus heat-seal lacquer to close the bag. The PM 3000 uses cold glue technology for the side seam — stronger, faster, cheaper and simpler than any heat-based system.

Diagram showing cold glue application on the paper web side seam of the PM 3000

How cold glue works on the PM 3000

A single servo-driven glue head lays a precise bead of cold adhesive along the side seam as the web runs, and a large-diameter pressing roller sets the seal instantly — no heaters, no cooling delay, no separate coating machine. The result is a consistent bond unaffected by ambient temperature, at full 300 bags/min speed.

The old way

Heat-seal lacquer

  • Requires two machines — a separate coating machine before pouching. More labour, floor space and material movement
  • HSL chemical itself is more expensive than cold glue
  • Inconsistent — quality varies with temperature through the day
  • Heating elements consume more power
  • Slower — bags must wait for the seal to cool and cure
  • Weaker seal; prone to opening in transit
The Prakash way

Cold glue technology

  • Single-machine workflow — unwind, print, glue, seal, form and batch in one pass. No separate coating machine
  • Cold glue adhesive is cheaper than heat-seal lacquer
  • Consistent seal quality — unaffected by ambient temperature
  • No heating elements — lower energy consumption
  • Faster — seals almost instantly, no cooling or curing delay
  • Stronger seal — the paper tears before the seam fails
Cold glue advantage

Four reasons it wins.

Faster

Instant bond enables sustained 300 bags/min without thermal cooling delays.

Cheaper

Standard uncoated paper plus low-cost cold glue beats coated-paper costs.

Simpler

One servo glue head replaces heaters, sensors and curing zones.

Stronger

Seam strength so high the paper tears before the seal opens.

Configurations

PM 3000 — 2, 3 or 4 colour.

Offered with 2, 3 or 4 flexographic print stations and double release-tape provision. Pick the print-station count that matches your brands' artwork — from single-tone courier mailers to full 4-colour D2C branded mailers, on the same platform.

Standard build highlights

Everything you need for mailer production

2, 3 or 4 servo flexo print stations
Hot-melt peel & seal, double release tape
Cold glue side sealing — servo
Closed-chamber doctor blade ink system
Automatic ultrasonic web guide
15-inch HMI on Mitsubishi PLC

Best suited for: converters supplying paper mailers to Amazon, Flipkart, Meesho & Myntra sellers; quick-commerce platforms like Blinkit, Zepto & Instamart; 3PL & courier companies; and D2C brands switching from plastic.

Printed peel and seal paper mailer bag configuration

Hole punching for ventilation

Inline punching creates ventilation holes in the bag wall — useful for produce, bakery and other breathable contents.

Bottom glue for standee pouches

Adds a bottom-glue station to produce standee pouches — bags that stand upright on shelf, ideal for direct-to-shelf D2C.

Auto splicer for non-stop production

Automatic roll splicer joins a new paper roll to the running web without stopping — eliminating downtime between roll changes for 24/7 production.

How the line is built

From paper roll to finished mailer.

The PM 3000 is organised into five integrated modules — each fully servo-driven and synchronised by the Mitsubishi PLC.

Module 01

Unwind section

  • Manual reel stand with hydraulic roll lifting
  • Air shaft for up to 800 kg paper rolls
  • Pneumatic disc brake with automatic tension control
  • Load-cell feedback for closed-loop accuracy
Module 02

Print & glue section

  • 2, 3 or 4 flexo stations with water-based inks
  • Hot-air plus IR drying between colours
  • Closed-chamber doctor blade, double-diaphragm ink pumps
  • I-mark sensor for glue registration with offset
  • Servo cold-glue section; double release-tape provision
Module 03

Infeed & outfeed

  • Servo-driven, load-cell-based infeed
  • Servo-driven, load-cell-based outfeed
  • Optimum tension control from full roll to core
Module 04

Forming & cutting

  • With and without gusset configurations
  • 3 nips, each driven by an individual servo motor
  • Servo-driven straight cutting; 170–750 mm cut-off
Module 05

Conveyor & delivery

  • Independent motor-driven conveyor belt
  • Large-diameter pressing roller for seam set-up
  • Edge-sensing counter for accurate bag count
  • Kicker system for automatic batching with variable batch settings
Technical specifications

PM 3000 spec sheet.

Complete technical parameters for the PM-3000-2PS2R e-commerce mailer bag machine.

Cut-off length (rotary)170 mm – 750 mm
Cutter height625 mm
Bottom gusset0 – 150 mm
Print station2, 3 or 4 colour flexographic (configurable)
Side-sealing glue typeCold glue
Max speed300 bags / min
Web guideAutomatic with ultrasonic sensor
Max roll weight800 kg
Tension controlAutomatic closed-loop with load cell
Control systemFull servo driven
HMI15-inch touchscreen
Peel & seal mechanismHot melt, 2 release tapes (10 kg tank, 1 hose, 100 mm head)
Total power40 kW
Machine dimensions (L × W × H)20,000 × 4,100 × 3,000 mm
Print & glue section
Flexo stations2, 3 or 4 (selectable), water-based inks
DryingHot-air plus IR drying
RegistrationI-mark sensor with offset function
Ink re-circulationClosed-chamber doctor blade, double-diaphragm pumps
Variable data printerMounting provision (printer in customer scope)
Applications

Who ships in paper mailers.

Wherever a plastic poly-mailer is used today, a paper mailer can replace it — from Amazon and Flipkart sellers to Blinkit, Zepto and Instamart dark stores.

Kraft paper mailer bag printed for a sustainable D2C fashion brand
D2C fashion & apparel — printed kraft mailer
Kraft paper mailer bag for quick commerce grocery delivery with 2-colour flexo print
Quick commerce & grocery — filled delivery pouch

Fashion & apparel

D2C clothing brands shipping garments in branded kraft mailers.

Quick commerce

Blinkit, Zepto, Instamart dark stores replacing poly with paper.

Books & stationery

Online book retailers and stationery brands shipping printed goods.

Gifting & subscription

Branded subscription mailers and gifting with a premium unboxing.

From order to production

A predictable, end-to-end process.

From the first technical discussion to the first batch off your floor — managed by the Prakash team.

1

Technical discussion

Share your bag-size range, GSM, print needs and target volumes. We finalise the configuration.

2

Order & manufacture

30% advance to begin manufacture at our Faridabad facility. Standard delivery timelines apply.

3

Erection & commissioning

Our engineers handle mechanical erection, electrical installation and commissioning at your factory.

4

Training & go-live

Operator and maintenance training on-site. Once your team is confident, production begins.

Frequently asked questions

Mailer bag machine — FAQ.

Bags from 170 mm to 750 mm cut-off length, with bottom gusset 0–150 mm and cutter height 625 mm. This covers the full range of mailer sizes — from small accessory mailers to large apparel mailers.
Maximum speed is 300 bags per minute. Actual sustained throughput depends on bag size, print job, paper GSM and operator skill, but the machine is engineered to hold high speed continuously for fulfilment-scale production.
A hot-melt system (10 kg tank, single hose, 100 mm head) applies adhesive to the bag flap, and a release-tape unit covers it with a peel-off strip. The PM 3000 has provision for two release tapes per bag. The end customer simply peels and seals — identical to a plastic poly-mailer.
Yes. Offered with 2, 3 or 4 servo-driven flexographic print stations, chosen at order time. All have closed-chamber doctor blades, hot-air plus IR drying, and water-based inks. A separate mounting provision exists for a variable-data printer for AWB numbers, barcodes and serial data.
The side seam uses cold glue technology — faster (no cooling delay), cheaper (standard uncoated paper), simpler (one servo glue head replaces heaters and curing zones), and stronger — in tear tests the paper fails before the seam opens. It is also more energy-efficient and food-safe.
Total installed power is 40 kW on standard 3-phase industrial supply. Machine footprint is 20,000 × 4,100 × 3,000 mm — plan floor and ceiling clearances accordingly.
No. The PM 3000 is a purpose-built e-commerce mailer machine — its bags are flat peel & seal pouches, not square-bottom or handle bags. For SOS bags see our SPBM Series; for fully automatic handle bags see the AUTO Series.
Standard supply includes mechanical erection, electrical installation, commissioning and operator training at your factory. A standard 12-month warranty from invoice date covers manufacturing and assembly defects; wear parts are excluded, in line with industry practice.

Ready to switch to
paper mailers?

Get a detailed quotation, datasheet and customer references for the PM 3000.

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