SEc

Thin-wall moulding is a race. The wall is so thin that the melt begins to freeze almost as soon as it enters the cavity, so the whole shot has to be delivered before that happens. The SEc reaches a maximum injection speed of 500 mm/s through a single-cylinder high-speed injection and plasticising design backed by a high-response servo hydraulic system.

The SEc-e variant adds synchronous electric plasticising — the screw recovers while the mould is opening and the part is being taken out, so plasticising time comes off the cycle rather than adding to it. On high-cavitation packaging work this is usually the difference that pays for the machine.

Running at these speeds punishes the machine, so the structure is built for it. The clamping unit is high-rigidity and low-strain with linear guide rails and proportional valves. The tie bars carry a special stress-relief groove that disperses clamping stress and prevents breakage. The toggle follows an optimised high-speed motion curve, and the platens are designed to reduce deformation and hold parallelism — which is what delivers even wall thickness. Mould opening position repeats to ±0.15 mm. A special diversion and confluence treatment lets the servo motor and pump rest during the high-speed portion of the cycle, saving energy and avoiding fatigue failure of both.

Typical medical consumables

Product	Size	Cavities	Model
Straight-mouth single-use barrel	2 ml	48	233SEc/e
Straight-mouth single-use barrel	5 ml	48	233SEc/e
Straight-mouth single-use barrel	10 ml	32	233SEc/e
Straight-mouth single-use barrel	20 ml	26	293SEc/e
Straight-mouth single-use barrel	50 ml	16	353SEc/e
Syringe plunger	2 ml	56	233SEc/e
Syringe plunger	5 ml	56	293SEc/e
Syringe plunger	10 ml	40	233SEc/e
Syringe plunger	20 ml	36	293SEc/e
Syringe plunger	50 ml	16	423SEc/e

Syringe barrels come off clean and free of foreign objects, with no edges, no plastic flow, no short shots and good sliding properties.

Typical food packaging cavitation

Model	350 ml	500 ml	750 ml	1000 ml	1250 ml	1500 ml	Lid 500 ml	Lid 1000 ml
233SEc/e	4	4	2	—	—	—	4	2
293SEc/e	6	4	2	2	2	2	8	4
353SEc/e	8	6	4	4	4	—	—	6
423SEc/e	12	8	6	6	4	4	12	8
613SEc/e	12	12	8	8	8	6	16	12

Cavitation depends on the size of the domestic lunch box and some products need a higher injection speed, so treat the table as a guide rather than a specification.

Where it fits: thin-wall food containers and lids, disposable cups, IML packaging, and medical consumables such as syringe barrels and plungers.