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SM-77-PPerforated servo line

SM-77-P Full-Servo High Speed Flat & Satchel Bag Machine

Five servo axes. 600 bags a minute. Small format.

Our core machine, refined over sixteen years of production. Five synchronised servo axes replace the mechanical cam train, so bag length is set on the touchscreen instead of by changing gears — a size change takes minutes, not a shift.

Indicative price

110,000 – 120,000 USD

FOB Istanbul · 15 weeks from advance payment · 12 months

SM-77-P Full-Servo High Speed Flat & Satchel Bag Machine

Overview

The SM-77-P makes flat and satchel paper bags from a single kraft reel: it prints, forms the tube, perforates, cuts, folds the bottom and delivers counted stacks in one continuous pass. Nothing is handled between stations.

Perforation is what separates this machine from the entry-level class. A servo-driven perforating knife scores the web ahead of the cut, so the bag separates cleanly at speed without the tearing that plagues cam-driven cutters running above 400 pieces per minute.

Every SM-77-P leaves Istanbul after a full production run on the buyer's own paper. We record the run, send the video, and only then crate the machine.

Key features

  • 600 bags a minute up to a 34 cm bag length
  • 5 synchronised servo axes — recipe-based size change from the HMI
  • Servo perforation unit for clean separation above 400 pcs/min
  • Automatic web tension control on unwind and infeed
  • Inline 4 colour flexo, 90 cm print width
  • Optional hot-melt window film applicator
  • Counted, stacked delivery with automatic batch separation

What it produces

  • Bakery and bread bags
  • Greaseproof fast-food bags
  • Pharmacy bags
  • Fruit and vegetable bags
  • Coffee and dry goods
  • Window bags for retail

How it works

Three sub-assemblies, built separately and married on the test floor.

SM-77-P · 1 · Unwind & print

1 · Unwind & print

A 1000 mm kraft reel is loaded on the pneumatic shaft. A dancer roll and servo brake hold web tension constant from full reel to core, which is what keeps print register stable as the roll diameter falls. The optional flexo deck prints up to four colours with water-based ink and dries inline.

  • Pneumatic reel lift
  • Magnetic powder brake
  • 4 colour flexo, 90 cm
  • Water-based ink, IR + hot air drying
SM-77-P · 2 · Form, glue & perforate

2 · Form, glue & perforate

The forming plate folds the flat web into a tube and sets the side gusset. A cold-glue wheel lays the longitudinal seam, then the servo perforating knife scores the tube at the bag pitch. Because the knife is on its own servo axis, perforation depth and position are set numerically — no shims, no trial cuts.

  • Numeric perforation depth
  • Cold-glue longitudinal seam
  • Gusset 20 – 80 mm
  • Tool-free forming plate change
SM-77-P · 3 · Bottom & delivery

3 · Bottom & delivery

The cross-cut servo separates the tube on the perforation, the bottom station opens, glues and folds the base, and the delivery belt stacks bags in counted batches. An automatic offset marks each batch so the operator can lift a bundle without counting by hand.

  • Servo cross-cut, no cam
  • Hot-melt or cold-glue bottom
  • Counted batch offset
  • Optional window film applicator
SM-77-P · Assembled

Assembled

Assembled, the three modules occupy 8.64 metres of floor and are driven by one PLC. One operator runs the line; a second is needed only when changing the reel.

Technical specification

Specifications are for the standard build. Non-standard widths, speeds and paper grades are quoted on request.

Download the catalogue
Technical specification
Machine modelSM-17/68 · 5 servo
Production speedup to 600 pcs/min
Bag width60 – 320 mm
Bag length170 – 770 mm
Automation5 OMRON servo axes (Japan) · PLC
Screen10" touchscreen
PrintingInline flexo, 4 colours, 90 cm print width
Print rollers25, 30, 34, 42 cm — 4 colours included
Dies5 dies to choose from
Reel liftPneumatic
BrakeMagnetic powder brake
Window systemCold window system
Dimensions (L × W × H)8.64 × 1.70 × 2.02 m
CertificationCE
Warranty1 year
Lead time75 working days
HS code8441.20.00.00.19

Bag formats on this machine

Flat satchel

Gusseted satchel

Bread & loaf bag

Greaseproof food bag

Burger & fast-food bag

Sandwich & wrap bag

Window satchel

Two-web window bag

Square-bottom (SOS) bag

Pharmacy bag

Fruit & vegetable bag

Coffee & dry goods bag

Perforated bag roll

Request a quotation for this machine

You will get the PDF immediately — specification, indicative price band and delivery terms.

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SM-56AV-bottom mechanical

SM-56A Flat & Satchel Bag Machine

Mechanical, rebuildable, and cheap to run. The workhorse.

up to 400 pcs/min
Kraft, chamois — 35 – 80 gsm
120 – 400 mm
220 – 560 mm

Indicative price

45,000 – 55,000 USD

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