A juice line is not a water line with a different product in the tank. Sugar, pulp and vitamin C each react to heat, air and time, and each one changes what the filling section has to do.

What Makes Juice Harder to Bottle Than Water

Four things separate a juice line from a water line, and all four are decided at the filler rather than at the tank.

• Foam. Juice foams when it drops into a bottle from height, and foam is where oxidation starts. It also wets the neck thread, so the cap cannot seal clean.
• Air. Vitamin C and colour fade on contact with oxygen. Every splash and every foam head is shelf life lost before the bottle is even capped.
• Pulp. Cloudy and pulp-containing juices settle in the tank and block nozzles sized for clear liquid, so the filling head has to be chosen for the product, not for the bottle.
• Sugar residue. Dried juice sticks hard to stainless steel and attracts insects. A line that cannot be cleaned in place costs a shift every week, and it fails an audit sooner or later.

Three Routes to a Shelf-Stable Bottle

Shelf life is decided before a filler is chosen. There are three common routes, and they differ in what the filling section must be built to handle. We build the filling section; the pasteuriser, chiller and aseptic zone usually come from your existing plant or a specialist supplier.

We will say plainly which of the three we build and which one we do not, instead of quoting around the gap. A clean-fill or hot-fill section, from bottle rinsing to case packing, is our scope. Aseptic filling needs a sterile zone we do not manufacture, and pretending otherwise only moves the problem to your commissioning week.

Matching the Bottle, the Closure and the Fill Temperature

PET and glass behave differently at the same fill temperature, and the closure decides more of the line than most buyers expect.

• PET. Softens and panels when filled hot, so the bottle needs support through the filler and a controlled cooling section afterwards. Lightweight bottles may need nitrogen dosing to hold shape.
• Glass. Takes the temperature without complaint but chips easily, so the conveyor and the filling action have to avoid bottle-to-bottle impact.
• Closure. Screw caps, press-on tamper-evident caps and roll-on aluminium each need a different capping head. The neck finish decides the capping machine, not the bottle volume.
• Format change. A line that needs new starwheels and pucks per bottle cannot serve a juice brand with eight SKUs. Ask what changes when you switch from 250 ml to 1 L before you sign.

Filling Without Foam or Oxygen Pickup

The fill head is where both problems are solved or created. Ours dives to the base of the bottle before the valve opens and rises as the level climbs, so the product never falls through air and the foam head never forms. A two-stage servo profile slows the flow near the shoulder, which keeps the neck thread dry enough for the cap to torque properly.

Nozzles travel with the bottle instead of stopping it, so there is no index stop and no bottle-to-bottle impact on decorated glass. Photoelectric sensors confirm bottle position before every cycle, and a missing or misaligned bottle is skipped, so juice never lands on the conveyor where it would start a cleaning job and an insect problem.

What the Line Includes

Only rinsing, filling and capping are unavoidable. Everything after the capper is quoted separately, so you can start with three machines and add the rest when the volume pays for it.

Sizing the Line to Your Output

Capacity is set by the number of fill heads and the fill time, not by how fast the conveyor can run. A quick way to check whether a quotation is realistic: multiply your target bottles per hour by the fill time in seconds, then divide by 3,600. That is your minimum head count.

At 6,000 bottles per hour with a three-second fill you need 5 heads, so a 6-head machine gives you margin. At 12,000 bottles per hour with a 2.5-second fill you need 8.3, which means 10 heads. If a supplier quotes 12,000 bottles per hour on six heads, the fill time they are assuming is under two seconds — ask what product that works with.

Operator count follows the automation level, not the output: manual bottle feeding and manual case packing each add one person per shift, whatever the machine is rated at.

What Drives the Cost

• Head count. The single largest variable. Doubling output roughly doubles the filling section, not the whole line.
• Fill temperature. Hot fill moves the seals, the piping and the bottle handling up a grade.
• Format flexibility. Running eight SKUs without change parts is worth more than a higher rated speed you never reach.
• Inspection and automation. Level detection, cap inspection and automatic packing are priced per station, and they are the first things to cut if the budget is tight.
• Factory works. Steam, chilled water, drainage and floor space are yours to prepare, and they are usually the reason a project slips.

What We Need From You to Quote

Juice projects go wrong at the specification stage far more often than at the machine. Send these nine points and the quotation will be right the first time:

• Juice type, sugar content (Brix) and whether it contains pulp or fibre.
• Filling temperature and the shelf life you are targeting.
• Bottle sample or drawing, with material, volume and neck finish.
• Cap sample, and whether it is screw, press-on or roll-on.
• Label type: wrap-around, sleeve or none yet.
• Target bottles per hour in your peak shift.
• What you already own: rinser, filler, capper, labeller, pasteuriser.
• Factory layout with steam, chilled water and drainage points.
• Whether you need one machine or a complete line from rinsing to packing.

Send a bottle, a cap and a product sample if you can. We will run them and send back video of the fill before you commit to a layout.