NORMA 250 is a fully automatic, high-speed stretch film rewinder. It takes jumbo rolls up to 700 mm wide and rewinds them into hand rolls, machine rolls and cling film rolls at up to 1,200 m/min – or 1,500 m/min with the double servo motor option.
A high-efficiency servo-motor drive and quick roll changes keep production costs low. Finished rolls come off on 25, 38, 50 or 76 mm cores, so one machine can follow your market as roll formats change. All manual operations, including maintenance, can be done by operators without special experience, and the machine is equipped with remote diagnostics.
Key features
- Servo-motor drive: up to 1,200 m/min, 1,500 m/min with double servo
- 10.1 s production cycle for a 150 m roll
- Jumbo rolls 300–700 mm wide, up to Ø480 mm and 70 kg
- Finished rolls up to Ø250 mm on 25, 38, 50 or 76 mm cores
- Film from 5 to 50 micron
- Remote diagnostic devices for fast support
- Well-known brand components for long, trouble-free service
Technical specifications
| Max. rewinding speed | 1,200 m/min (1,500 m/min with double servo motor) |
| Production cycle time | 10.1 s (150 m) |
| Max. jumbo roll diameter | 480 mm |
| Max. jumbo roll weight | 70 kg |
| Jumbo roll width | 300–700 mm |
| Jumbo roll core | 76 mm |
| Max. finished roll diameter | 250 mm |
| Finished roll inner diameter | 50 mm (options 25, 38, 50, 76 mm) |
| Film thickness | 5–50 micron |
| Installed power | 6.5 kW |
| Nominal power consumption | 5.5 kWh |
| Electric supply | 380 V, 3P + N + G, 50/60 Hz |
| Air supply | 6–8 bar, 100 Nl/min |
| Machine dimensions (W × L × H) | 1910 × 1425 × 1990 mm |
| Net weight | 1,450 kg |
Values from the Bronse catalogue 2026. Ask us for the configuration that matches your film and rolls.
Who NORMA 250 is for
- Stretch film producers who want to turn their own jumbo rolls into hand and machine rolls next to the extrusion line.
- Stretch film distributors who buy jumbo rolls and rewind the roll sizes their customers order.
- Converters who also supply cling film rolls from the same machine.
What to tell us before ordering
- Jumbo roll width, diameter and core
- Film type and thickness range
- Finished roll lengths or weights, and core sizes
- Expected daily output and number of shifts
See it in operation
How NORMA 250 works
- A jumbo roll up to 700 mm wide and Ø480 mm is mounted on its 76 mm core.
- The operator selects the roll length, core size and speed on the control panel.
- The servo drive rewinds the film onto the finished-roll core at up to 1,200 m/min (1,500 m/min with the double servo motor).
- At the set length the film is cut and the roll is changed – one cycle takes 10.1 s for a 150 m roll.
- Finished rolls are taken off for labelling and packing while the next roll is wound.
Roll formats explained
Most stretch film is sold in three formats, and a rewinder is what turns the first into the other two:
- Jumbo (mother) rolls come straight off the extrusion line, usually on 76 mm cores. They are too large and heavy to wrap pallets with.
- Hand rolls are short, light rolls for manual wrapping, typically on small cores so they can be held on a handle or dispenser.
- Machine rolls are longer, heavier rolls for pallet wrapping machines. Bronse pallet wrappers, for example, take rolls 500 mm wide, up to Ø250 mm and 16 kg on 76 mm cores.
Roll weight is easy to estimate: weight (kg) ≈ width (m) × length (m) × thickness (micron) × 0.92 ÷ 1,000. A 500 mm × 300 m × 17 micron hand roll weighs about 2.3 kg; a 500 mm × 1,500 m × 23 micron machine roll about 16 kg.
Output example
At the catalogue cycle time of 10.1 seconds for a 150 m roll, NORMA 250 can complete about 350 cycles an hour, or roughly 2,800 rolls in an eight-hour shift in continuous running. Real output is lower once jumbo changes, core supply and packing are included, and it depends on your roll length and film. We will calculate it for your formats.
What makes a good finished roll
Buyers judge a rewound roll quickly, so it is worth checking samples against these points:
- Straight edges. The film layers should sit flush; a roll whose layers slide sideways (telescoping) is hard to sell and hard to use.
- Consistent length. Every roll sold as 300 m should hold 300 m. Servo-driven length control is what keeps this repeatable.
- Even winding. No wrinkles, trapped air or loose outer layers, so the roll stays round in transport.
- Film properties kept. Rewinding should not over-stretch standard film or damage cling.
Actual running speed depends on the film. Thin or uneven jumbo rolls normally run below the maximum speed, so send us your film data and we will tell you what to expect.
Preparing your site for the NORMA 250
Everything you need to plan the installation is in the catalogue values:
- Electricity: 380 V, 3P + N + G, 50/60 Hz, 6.5 kW installed power (nominal consumption 5.5 kWh).
- Compressed air: 6–8 bar, 100 Nl/min. Clean, dry air keeps pneumatic parts working longer.
- Floor space: 1910 × 1425 mm footprint, 1990 mm high for the machine itself, plus room to bring in jumbo rolls, take finished rolls away and let the operator move around.
- Floor load: net weight 1,450 kg.
- Jumbo handling: jumbo rolls weigh up to 70 kg, so plan how they reach the machine – a hoist, lifting trolley or crane.
Operation and routine care
NORMA 250 is designed so that all manual operations, including maintenance, can be done by operators without special experience.
- Keep rollers and guides free of film residue and dust.
- Check blades and cutting parts regularly and replace them when the cut is no longer clean.
- Drain the compressed-air filter and check the air pressure stays at 6–8 bar.
- Follow the lubrication and inspection intervals in the operating manual.
Machines with remote diagnostics can be checked by our service team over the internet, which shortens the time to a fix.
Frequently asked questions
What is the difference between NORMA 250 and ULTIMA 250?
NORMA 250 rewinds at the jumbo width. ULTIMA 250 adds a slitting unit, so one jumbo roll is cut into several narrower rolls.
Can NORMA 250 make cling film rolls?
Yes. It produces stretch film hand rolls, machine rolls and cling film rolls. For dedicated 300 mm cling film production, see OPTIMA 30.
How fast is a roll change?
The production cycle time is 10.1 seconds for a 150 m roll.
What is the maximum finished roll size?
Up to Ø250 mm, on 25, 38, 50 or 76 mm cores, at any width the jumbo allows (300–700 mm).
Can rolls from NORMA 250 be used on pallet wrapping machines?
Yes. Machine rolls 500 mm wide on 76 mm cores, up to Ø250 mm and 16 kg, fit Bronse WRAPTOR and ROBOWRAP wrappers and most other pallet wrappers.
Does film quality affect speed?
Yes. Thin or uneven film usually runs below the maximum speed. Send us your film data for a realistic figure.
Related machines
- ULTIMA 250 – rewinding plus a slitting unit
- UNIVERSA 250 – pre-stretched rolls
- OPTIMA 30 – cling film turret rewinder
Get a quote for the NORMA 250
Tell us your jumbo roll width, film thickness and the finished rolls you sell. We will reply with a configuration and a price.
