Automatic filling machine EL2-E

bottlecontainerjerry can

Overview
The EL2-E is a sequential in-line automatic weigh-filling machine for jerrycans, pails and equivalent containers from 1 to 30 litres. Containers index from station to station so multiple operations run in parallel. With two filling stations the first delivers bulk dose and the second performs an accurate top-up, enabling high throughput with precise net weights. Operators only load empties at the infeed and unload filled containers at the outfeed; containers are not manually handled during the cycle.

Versions
Two main constructions are available:

• Horizontal: 2 to 6 positions shared between up to two filling stations and operating stations. Ideal when intermediate operations are required (centring, uncapping, purging, weight check, capping or sealing). Unused positions are supplied ready for future extension.
• Vertical (EL2-E-V): 2 to 8 filling stations (even numbers). All stations fill; a single electro-pneumatic actuator raises/lowers all nozzles. Suited to maximum raw throughput.

Operating stations (horizontal version)

• Container centring: two-arm system (one arm with free rollers, one with motorised wheels) holds and rotates the container to locate the bunghole and stop in a known orientation.
• Centring and uncapping: unscrew head removes cap and places it on a cap conveyor towards the capping station.
• Purging: lance injects inert gas into the container typically before filling.
• Filling: filling stations perform two-stage dosing when two stations are fitted (bulk + accurate top-up).
• Weight check: independent final weight verification performed at a dedicated position separate from filling.
• Capping: automatic screwing with cap feeder, cap placer and torque-controlled head; available configurations for jerrycan caps, 2" screw caps and press-on caps. 2" version can also seal.

How it works

• Select recipe, target net weight and container format on the operator panel.
• Adjust filling height and side guides to the format without tools.
• Load empty containers on the infeed conveyor.
• Start: machine links cycles automatically so each container advances one position per cycle and each station executes its operation.
• With two filling stations the first dispenses the bulk and the second completes the final top-up accurately.
• Unload full containers at the outfeed.

Filling modes and assemblies
Two stainless-steel filling assemblies are offered (sandblasted AISI 304 body, AISI 316L nozzles standard; other materials on request):

• Under-bunghole filling: nozzle descends just inside the bunghole and fills from that level. Recommended for non-foaming, non-flammable products, including viscous fluids. This assembly fills under the bunghole only.
• Immersion filling (recommended for foaming or flammable products): nozzle descends to the container bottom. Recipe selects one of three behaviours:
  • Rising with the product: nozzle opens at the bottom and rises with the liquid, control keeps nozzle at product level.
  • From the bottom: nozzle remains at lowest position for the whole fill (for very foaming products).
  • Under-bunghole: nozzle enters just past the bunghole and fills from there (same behaviour as under-bunghole assembly).

Machine architecture
The welded structure supports the in-line positions and transfer system. Each filling station has an independent weighing channel (load cell, summing box, support mechanics and control channel). The machine is designed for integration into a conveyor line (supplied separately when required). Nozzles may differ between stations and each station controls its own weight channel for preserved accuracy when dosing is split.

Inert gas filling (optional)
Inerting is available as an accessory. The nozzle includes a dedicated gas passage and a solenoid in the main control times gas flow so inerting becomes a recipe-controlled phase (before nozzle open, during fill, after target weight, etc.). Nitrogen is typical but gas is selected per product. Inerting can also be achieved via overpressure capping assemblies. Some installations require inerting for safety with flammable products.

AiCROVFill® (control and filling software)
AiCROVFill® manages accurate, repeatable and safe fills. Key functions:

• Final weight control and top-up: after nominal weight the nozzle closes and the system monitors settled weight, reopening to top-up if necessary.
• Compensation for submerged lance: control compensates for displaced volume due to lance immersion so net weight remains correct after removal.
• Post-close product compensation: either a fixed learned value or per-container adaptive learning is used to compensate product still falling after valve close.
• Recipe-based operation: filling parameters stored per product and container format for quick selection on the panel.
• Independent weighing per station: each station manages its own scale so split dosing preserves accuracy.

Built from parts you can buy yourself
The machine uses industrial components from global brands for control, pneumatics, sensors and weighing elements — no proprietary electronics in the control chain. Spare parts can be sourced locally and maintenance teams work on familiar platforms.

Safety and compliance
Designed and manufactured in Europe to applicable machinery safety legislation; CE marking provided. Design follows harmonised frameworks (risk assessment to EN ISO 12100, safety-related control parts to EN ISO 13849-1, electrical equipment to EN 60204-1, emergency stop to EN ISO 13850). The machine is fully enclosed with interlocked front windows; opening a window interrupts the safety circuit and stops the machine. Explosion-proof assemblies are available under applicable certification schemes (ATEX, IECEx, NEC equivalents). Options include inert gas filling and electrostatic grounding where required.

• Safety features: emergency stop (cuts power and pneumatic supply), front window interlocks, passive nozzle lock, safe behaviour on failure (no residual transfer), feed and discharge tunnels sized to container format.

Technical specifications

• Type: In-line automatic, sequential, weigh filling
• Series: Advanced
• Containers: Jerrycans, pails and equivalents, 1 to 30 litres
• Throughput: up to 900 containers/hour (25 L)
• Filling accuracy: ±0.1% of nominal fill (to be confirmed per application)
• Scale resolution: ±10 g
• Inert gas filling: optional accessory
• Versions: Horizontal 2–6 positions; Vertical 2–8 filling stations
• Stations (horizontal): centring, uncapping, purging, filling, weight check, capping, sealing
• Filling assemblies: under-bunghole or immersion (immersion can operate rising, bottom-fill or under-bunghole)
• Weighing: one independent scale per filling station
• Power: 3×380 VAC, 50–60 Hz, <10 kW (to be confirmed per project)
• Air pressure: 6 bar (other pressures on request)
• Working temperature: −10 °C to +45 °C
• Product temperature: 0 °C to +130 °C
• Product connection: 1½" male camlock
• Weight: ~1,000 kg (to be confirmed per project)
• Enclosure: full, interlocked windows
• Explosion-proof version: available for whole assembly