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, ROLL-FLEX DT and ROLL-FLEX AU we differentiate our wide range of solutions for the production of bags on roll.

Roll-Flex

– Without core
– Up to 3 lanes

Roll-Flex SH

– With or without core
– Up to 4 lanes

Roll-Flex DT

– Without core
– Up to 2 lanes

Draw-tape bags with anti-drop side sealing

Roll-Flex AU

– With core
– Up to 6 lanes

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.
ROLL-FLEX AU for the production of pre-cut bottom sealed vegetable bags rolled up (with carton core).

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-FLEX AU
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	ROLL-FLEX AU
FEEDING LINE:
Film width (Max.)	mm	1200-1700-2000	1200-1700-2000	1200-1700-2000	1700-2000
Roll Ø (Max.)	mm	1100-1300-1500	1100-1300-1500	1100-1300-1500	1100-1300-1500
BAG SIZE:
Width (Min. - Max.) - BOTTOM SEAL	mm	250-1500	250-1500	- - -	180-1500
Length (Min. - Max.) - BOTTOM SEAL	mm	400-1500	400-1500	- - -	400-1500
Width (Min. - Max.) - ANTI-DROP	mm	250-1500	250-1500	- - -	- - -
Length (Min. - Max.) - ANTI-DROP	mm	400-1500	400-1500	- - -	- - -
Width (Min. - Max.) - DRAW-TAPE	mm	- - -	400-1300	- - -	- - -
Length (Min. - Max.) - DRAW-TAPE	mm	- - -	400-1500	- - -	- - -
Width (Min. - Max.) - T-SHIRT	mm	- - -	- - -	200-350	- - -
Length (Min. - Max.) - T-SHIRT	mm	- - -	- - -	400-1500	- - -
BAG MAKING MACHINE:
N° Piste	no.	1-2-3	1-2	2-3-4	5-6
Sealing width (Max.)	mm	1100-1350-1500	1100-1350-1500	1100-1350-1500	1100-1350-1500
Sealing thickness (Min. - Max.) HDPE	mm	0,008-0,045	0,008-0,045	0,008-0,045	0,008-0,045
Sealing thickness (Min. - Max.) LDPE	mm	0,015-0,050	0,015-0,050	0,015-0,050	0,015-0,050
Production speed	cycles/min	300	300	300	300
Feeding film speed	m/min	160	160	160	160
AUTOMATIC REWINDER:
Rewinding spindles	no.	4-8-12	4-8	4-6-8
Rolls width (Min. - Max.)	mm	120-420	120-420	120-420	120-420
Rolls Ø (Min. - Max.)	mm	35-150	35-150	35-150	35-150
Rolls change per minute	no.	22	22	22	22
TAPING DEVICES:
Devices	no.	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 installed	kW	14-18	14-18	14-18	14-16
Compressed air consumption	Nl/min	1200-2400	1200-2400	1200-2400	1200-2400