Semi-automatic filling machine LSB

drumliquidsfor drums

Overview
The nozzle is fixed; the drum is positioned on a flat roller platform and rotated until the bunghole is beneath the nozzle. The LSB performs single-drum net-weight filling for drums and equivalent containers from 30 to 250 litres. The operator places and turns the drum, starts the cycle and the system tares and fills to the selected net weight. This approach removes the need for a positioning axis by moving the container instead of the filling head.

When to choose the LSB

• Yes, if you fill single drums (30–250 L) handled by an operator and require gravimetric net-weight dosing.
• No, if drums remain loaded on pallets and you do not want to unload them — consider pallet-handling or inline solutions.

How it works

• Operator selects the filling recipe and target net weight on the control panel.
• Filling height is adjusted to the container format without tools (servo adjustment).
• Empty drum is placed on the weighing platform with free rollers.
• Operator rotates the drum until the bunghole aligns beneath the fixed nozzle.
• On start, the system tares automatically and dispenses to the net weight; full drum is removed and the next is positioned.

Filling modes
Two filling assemblies are available: under-bunghole and immersion. Both assemblies use sandblasted AISI 304 stainless steel with an AISI 316L nozzle as standard; alternative materials are available for specific products.

• Under-bunghole filling — nozzle descends just inside the bunghole and fills from that position; suitable for non-foaming, non-flammable, non-explosive products.
• Immersion filling — nozzle descends to the container bottom. The recipe selects one of three modes:
  • Rising with the product: nozzle opens at the bottom and rises as the product level increases; control maintains nozzle at product level.
  • From the bottom: nozzle remains at its lowest position for the entire fill (for highly foaming products).
  • Under bunghole: nozzle enters slightly past the bunghole and fills from that position.

Machine architecture
A self-supporting frame carries the column and fixed filling head. The weighing terminal is integrated with the control system. The flat platform with free rollers allows rotation of the drum without lifting, replacing a moving filling head and eliminating a positioning axis.

Inert gas filling (optional)
An inerting accessory is available: the nozzle includes a gas passage and a dedicated solenoid valve in the control cabinet controls flow. Inerting phases (before opening, during filling, after target weight, or combinations) are configurable in the recipe. The nozzle is interchangeable without modifying the structure or filling head.

AiCROVFill®
AiCROVFill® is the gravimetric filling control system providing precise, repeatable dosing. Key functions include:

• Misalignment control — if nozzle meets resistance it returns up and waits for operator realignment.
• Final weight control and top-up — system monitors settled weight after nominal fill and reopens if a top-up is needed.
• Compensation for submerged lance — control accounts for lance position and compensates displaced volume to ensure correct net weight after extraction.
• Automatic post‑cutoff compensation — the system learns residual product flow after valve closure and adjusts cut-off to maintain nominal weight over time.
• Recipe-based operation — filling parameters are stored per product and container format for quick selection.

Built from standard parts
The LSB uses industrial components (controls, pneumatics, sensors, weighing elements) from globally available brands; no proprietary electronics or firmware are embedded in the control chain to simplify spare parts sourcing and maintenance.

Safety and compliance
Designed and manufactured in Europe to applicable machinery safety legislation; CE marking as baseline. Design and risk assessment follow EN ISO 12100. Safety-related control parts follow EN ISO 13849-1; electrical equipment follows EN 60204-1; emergency stop follows EN ISO 13850. Safety features include:

• Emergency stop — cuts electrical power and pneumatic pressure simultaneously; manual reset required.
• Passive nozzle lock — nozzle cannot open without pneumatic pressure; loss of air or power stops the machine with the nozzle closed.
• Safe behaviour on failure — no residual nozzle movement or unintended product flow.
• Explosion-proof versions available and engineered per the certification scheme required at installation site.

Technical specifications

• Type: Semi-automatic, weigh (gravimetric) filling
• Series: Plug & Fill
• Containers: Drums and equivalent, 30–250 litres
• Throughput: up to 65 drums/hour (220 L)
• Filling accuracy: approx. ±0.1% of nominal fill (to be confirmed per application)
• Scale resolution: ±50 g
• Filling assemblies: Under-bunghole or immersion (immersion also supports under-bunghole or bottom filling)
• Height adjustment: 550 mm, servo
• Power: 240 V, 50–60 Hz, 0.5 kW
• Air pressure: 6 bar (standard)
• Operating temperature: −10 °C to +45 °C
• Product temperature range: 0 °C to +130 °C
• Product connection: 1½ in male camlock
• Machine weight: 300 kg
• Inert gas filling: optional accessory
• Explosion-proof version: available