Double Die Head Blow Molding Equipment for 1L HDPE Containers

Output per hour is usually the number a buyer checks first, and it is decided less by screw size than by how many parisons leave the die head in one shot. The MP70D-2 carries two die heads on a double station frame, so each cycle produces two containers with a single machine operator.

Doubling cavities only works if both parisons are identical. Each die head on this machine is self-manufactured by MEPER and adjusted independently, so wall thickness in cavity one matches cavity two. Buyers who have fought weight variation between cavities on a cheap twin head will recognise why that matters for resin cost.

• Two independent die heads: Each head is adjusted separately, so parison weight in both cavities can be matched to within a few grams
• 70 kg/h HDPE capacity: A 70 mm, 24 L/D screw feeds both heads without starved parisons at full cycle speed
• Double station frame: Two moulds work in parallel, turning one extrusion into two finished containers per cycle
• Self-manufactured heads: MEPER machines the die heads in house, keeping spare flow components available for the life of the machine
• Adjustable extrusion platform: The swing and adjustable platform lets operators align heads to moulds without shimming
• Water cooled blow pins: Modular water cooled pins shorten cooling time on 1L HDPE containers

• High volume 1L HDPE container production
• Lubricant and oil bottle lines with two cavity tooling
• Household chemical containers in HDPE and PP
• Detergent and cleaner bottles with handle inserts
• Contract moulding where cycle cost drives the quotation

A: On a properly set machine, container weight between cavity one and cavity two typically stays within plus or minus 1.5 grams for a 1L HDPE bottle. We record weights for both cavities during the factory trial and include the sheet in the shipment documents.

A: Yes. One head can be shut off with a blanking plug while the other runs, which is common for trial moulds or low volume parts. This keeps the machine productive before the second mould is ready.

A: Compressed air consumption is 0.8 to 1 cubic metre per minute at 0.6 to 0.8 MPa, and cooling water is around 40 litres per minute. Both figures assume two active heads; a single head run uses roughly half the air.

The machine leaves the factory with heads blanked, platens blocked and rust preventive applied, mounted on a wooden pallet inside a plywood case. Delivery is 25 to 35 working days after deposit. Each unit is CE marked, produced under ISO9001:2008 control, and supported by a 12 month warranty plus English documentation and remote commissioning.