ROTOFILL 50-260

ROTOFILL 50-260 – automatic liquid filling machine

ROTOFILL 50-260 is an automatic liquid filling machine designed to perform at its best on low-viscosity liquids (e.g. propylene glycol) and handle moderate viscosity products (e.g. vegetable glycerin), with output up to 50 pcs/min and high dosing repeatability.

Not recommended for very high-viscosity products such as mascara and lip gloss: dedicated solutions like ROTOFILL ML2100 or ROTOFILL ML-ECO are more suitable.

Overview

ROTOFILL 50-260 is built on a solid mechanical design engineered for stable and repeatable movements, aiming at high performance and consistent filling accuracy. The machine is organized into 3 workstations: dosing, cap pick & place and capping.

The project focuses on fast changeover: a rotary table with magnetic pockets, height adjustments via handwheel and numeric indicator, and a pneumatic quick-change system for the capping chuck to reduce operator intervention time.

Operation is managed via a 7” touchscreen HMI. Pneumatic settings are grouped on a dedicated panel with flow regulators, while fiber-optic sensors monitor key cycle phases for process stability and reliable alarms.

Ideal for

• Automatic filling of low-viscosity liquids with high output and stable performance
• Moderate viscosity products (e.g. vegetable glycerin) when repeatability is required
• Bottles from Ø 15 × H 30 mm up to Ø 45 × H 150 mm

Key advantages – automatic liquid filling machine

1) Three integrated stations: dosing + cap pick & place + capping
Complete in-machine cycle with dedicated controls to reduce errors and downtime and to support high throughput.

2) Fast changeover
Magnetic pockets, numeric height references and pneumatic quick-change chuck help speed up format changes and reduce setup time.

3) Wide dosing range with dual PACK ECO dosing units
A trolley-mounted setup with 2 pneumatic volumetric PACK ECO dosing units (format 50 + 260) covers 3–260 ml and enables quick switching between volumes.

Technical details

Bottle infeed and accumulation

The infeed conveyor includes a multi-lane accumulation section to buffer a high number of empty bottles and ensure a steady feed into the rotary table.

Dosing station with adjustable nozzle height

The dosing station uses a vertical slide column to position the nozzles at the correct height. This allows dosing with the nozzle inside the bottle neck and supports stable filling.

Cap pick & place with vacuum

Caps are fed by a vibratory bowl feeder. A mechanical pick & place deposits the cap onto the bottle using a vacuum pump, with bottle presence control enabling the pick cycle.

Dual brushless capping + bottle stabilization clamp

The capping section includes two cappers (pre-capper + capper) to support high output. Both are brushless and adjustable from the HMI: speed up to 2800 rpm and torque up to 3 Nm. During tightening, the bottle is held by an adjustable pneumatic stabilization clamp to avoid sudden shocks on small formats.

Fiber-optic sensors and alarms

Fiber-optic sensors monitor bottle presence in dosing, dosing enable, pick & place conditions and key process alarms: no bottles at infeed, empty cap feeder, and missing cap before outfeed.

Technical FAQ

Key specs