Bags on Roll

Saldoflex / Bag Making Machine / Bags on Roll

ROLL-FLEX SERIES

With our servo-drive automatic plastic bag making machines of ROLL-FLEX Series it’s possible to produce T-shirt bags and bottom sealed bags (printed or not printed) up to 6 lanes.
With the models ROLL-FLEX, ROLL-FLEX SH and ROLL-FLEX DT we differentiate our wide range of solutions for the production of bags on roll.

Roll-Flex

– Without core
– Up to 3 lanes

Anti-drop side sealing bags Bottom Sealing bags Bottom sealing bags Anti-drop bottom "star" sealing bags Anti-drop bottom "tomato" sealing bags

Roll-Flex SH

– With or without core
– Up to 4 lanes

Bottom Sealing bags Bottom sealing bags Anti-drop bottom "star" sealing bags T-shirt bags Anti-drop bottom "tomato" sealing bags

Roll-Flex DT

– Without core
– Up to 2 lanes

Draw-tape bags with anti-drop side sealing

FAST, FLEXIBLE AND RELIABLE

We have engineered and developed the ROLL-FLEX Series models to guarantee productivity optimization, ease of operation and low maintenance.

  • ROLL-FLEX for the production of pre-cut, bottom sealed and garbage bags, rolled up and taped with gummed paper.
  • ROLL-FLEX DT for the production of pre-cut draw-tape bags rolled up and taped with gummed paper.
  • ROLL-FLEX SH for the production of pre-cut, T-shirt and bottom sealed bags, rolled up (with or without carton core) and taped with gummed paper.

Standard lines can be configured with additional accessories and devices that allow you to customize your production:

  • Dancing roller unit with pneumatic working and quick film feeding. Upon request, it is possible to apply the C folding module on the dancing roller unit.
  • Folding unit the production of the star-seal bag – zero-gusseted and folded in two parts before the sealing phase.
  • Folding group with four triangles, to be installed between the bag making machine and the rewinder dancing roller. It allows the production on multiple lanes of anti-drop garbage bags side-sealed with closed bottom, folded and rolled up.
  • Automatic equipment to change draw-tape roll without stopping the machine
Download our catalogs of:
Bags on Roll

ROLL-FLEX
ROLL-FLEX DT
ROLL-FLEX SH
Roll holder - Shaftless unwinder

  • Hydraulic system for lifting rolls from the floor. Maximum roll ∅ mm 1100 (∅ mm 1300 and ∅ mm 1500 on request).
  • Automatic film tension control by multiple vertical dancing roller equipments and motorized rubber wheels
  • Pneumatic film guiding system as standard.
  • Automatic machine stops at end of film roll and in case the film breaks.
  • Double overlapping or side by side unwinder (on request).
Slit-sealing unit

  • Nickel chrome slit-sealing blade device, suitable to cut and seal the film in multiple tubular lanes starting from one single roll.
  • Electronic control and independent blades management.
  • Automatic system to engage and detach cut-sealing blade from the film, when the machine stops.
Motorized post-gusseting equipment

  • Pair of rubber cylinders, with opening and closing pneumatic control, for perfect airtightness into the material.
  • Mechanical devices for adjusting the depth of the gussets.
  • Automatic quick film feeding system into multiple vertical dancing rollers unit.
  • Motorized output conveyor groups with remote control.
Sealing bar with cold cutting blade

  • The modular sealing bar first cuts the film and only afterward seals.
  • The film is cut by a serrated cold blade, motorized with oscillating movement.
  • The modular sealing bar temperature is kept constant by a closed water cooling circuit.
  • The sealing is performed with a Ni-Cr strip alloy plate.
  • The strips coating is made with quick-change adhesive Teflon.
Fully-independent automatic rewinder - WITHOUT CORE

  • Bags on rolls can be produced on different lanes according to the size of bags.
  • Rewinding stations are fully-independent: each one equipped with 4 revolving spindles driven by as many brushless motors.
Fully-independent automatic rewinder - WITH CORE

  • Bags on rolls can be produced on different lanes according to the size of bags.
  • Rewinding stations are fully-independent: each one equipped with 4 revolving spindles driven by as many brushless motors.
  • Equipped with hoppers for automatic feeding of carton cores.
Taping device

  • Possibility of taping the rolls with a printed or not printed strip paper.
  • Taping devices equipped with a belt for cut and moistened tape transportation.
  • Taping unit with photocell for reading the printed paper using a notch as a reference.
Draw-tape insertion unit

  • Draw-tape roll holder (Ø mm 800) with automatic roll braking and small dancing rollers for tension control.
  • Motorized calender to pull the feeding film.
  • Motorized device for punching hole (Ø mm 30) with scraps exhausting.
  • Turning device to insert automatically the draw-tape.
Brushless servo motors
  • Main machine drive by electronically controlled servo motors, to adjust film feeding speed with sealing bar motion synchronization.
  • Motorized film infeed calender.
  • Motorized film outfeed calenders controlled and managed by independent servomotors for optimal tensioning of the lanes.
Bio Ready

  • Thanks to our innovative technology, all our machinery are able to process biodegradable and compostable films.
  • We are able to process Bioplastics with a minimum thickness of 8 microns.
Ready 4.0

  • All our machinery are set up and equipped with web servers and OPC UA servers as required by Industry 4.0 specifications.
  • We guarantee freedom and flexibility of integration between our machinery and our customers’ ERP or MES systems.
Remote assistance & Diagnostics
ROLL-FLEX
ROLL-FLEX DT
ROLL-FLEX SH
FEEDING LINE:
Film width (Max.)mm
1200-1700-2000
1200-1700-2000
1200-1700-2000
Roll Ø (Max.)mm
1100-1300-1500
1100-1300-1500
1100-1300-1500
BAG SIZE:
Width (Min. - Max.) - BOTTOM SEALmm
250-1500
250-1500
- - -
Length (Min. - Max.) - BOTTOM SEALmm
400-1500
400-1500
- - -
Width (Min. - Max.) - ANTI-DROPmm
250-1500
250-1500
- - -
Length (Min. - Max.) - ANTI-DROPmm
400-1500
400-1500
- - -
Width (Min. - Max.) - DRAW-TAPEmm
- - -
400-1300
- - -
Length (Min. - Max.) - DRAW-TAPEmm
- - -
400-1500
- - -
Width (Min. - Max.) - T-SHIRTmm
- - -
- - -
200-350
Length (Min. - Max.) - T-SHIRTmm
- - -
- - -
400-1500
BAG MAKING MACHINE:
N° Pisteno.
1-2-3
1-2
2-3-4
Sealing width (Max.)mm
1100-1350-1500
1100-1350-1500
1100-1350-1500
Sealing thickness (Min. - Max.) HDPEmm
0,008-0,045
0,008-0,045
0,008-0,045
Sealing thickness (Min. - Max.) LDPEmm
0,015-0,050
0,015-0,050
0,015-0,050
Production speedcycles/min
300
300
300
Feeding film speedm/min
160
160
160
AUTOMATIC REWINDER:
Rewinding spindlesno.
4-8-12
4-8
4-6-8
Rolls width (Min. - Max.)mm
120-420
120-420
120-420
Rolls Ø (Min. - Max.)mm
35-150
35-150
35-150
Rolls change per minuteno.
22
22
22
TAPING DEVICES:
Devicesno.
1-2-3
1-2
2-3-4
Strip width (Min. - Max.)mm
30-200
30-200
30-200
Strip length (Max.)mm
450
450
450
Strip roll Ø (Max.)mm
200
200
200
POWER DATA:
Electrical power installedkW
14-18
14-18
14-18
Compressed air consumptionNl/min
1200-2400
1200-2400
1200-2400