SK Series

SK Series High Speed & Precision Plastic Injection Moulding Machine

YAN HING GROUP didirikan di Hong Kong sejak tahun 1950 dan telah berpengalaman lebih dari setengah dekade dalam produksi mesin plastic injection. YAN HING GROUP telah bekerja sama dengan PT. EKA MAJU MESININDO lebih dari 30 tahun dalam memasarkan produk-produk YAN HING di Indonesia secara eksklusif. SK series adalah mesin dengan fokus utama di kecepatan danpresisi tinggi. Pada umumnya digunakan untuk mencetak barang kecil dan tipis, seperti kaca monitor handphone.

Clamping Unit

Highly accurate and rigid nodular graphite casting steel platens designed through CAE finite element analysis ensure optimal requirement of clamping

Five-point vertical double toggles and chrome-plated high tensile tie-bars give stable platen movement and sufficient clamping force

Clamping speed is largely increased over 80% by adopting differential hydraulic circuit

Extended daylight opening and enlarged platens allow accommodation of bigger moulds

Electrical, hydraulic and mechanical safety devices are all employed to ensure safe operation

Hydraulic ejector is enhanced with selectable modes of non-return, vibration or multi-stroke

Automatic mould height adjustment allows quick mould set-up

Prompt and accurate change of every closing/opening stage ensures smooth mould travelling and mould protection

The application of self-lubricating bushings in platens, cylinder rods, guide rods, etc. can largely eliminate wear of mechanical parts and thus prolong machine life

Injection Unit

Nitrided screw and barrel

Productivity can be increased by high speed and high pressure injection and plasticizing

Screw with L/D ratio 21:1 suits moulding most engineering resins

Automatic screw purging and nozzle hunting

Double hydraulic carriage cylinders ensure secured contact between nozzle and mould and prevent nozzle leakage

Special design of screw check valve allows the best plasticizing result in both mixing and melting

T-6 Controller

Specially designed computerized controller Techtronic T-6 shows all operation parameters and allows memory storage of 200 moulding data sets. It also gives warning messages in case of malfunction

7 inches 16:9 color LCD monitor with Chinese/English character interchangeable display

Direct input of pressure, speed, position, time, moulding temperature and functions

6-stage setting for injection pressure, speed and position

4-stage setting for injection holding pressure, speed and time

3-stage setting for plasticizing pressure, speed and position

5-stage setting for mould close and 4-stage setting for mould open pressure, speed and position

2-stage setting for ejection pressure, speed and position

Highly accurate potentiometers monitor mould, screw and ejector positions

Injection volume detection and screw prevention of cold start

Built-in PID temperature control program and solid state relays in heater circuit give accurate moulding temperature and durable control circuit

Independent heater temperature malfunction monitoring device to prevent barrel overheat.

Safety protection monitoring prevents malfunctional mould closing.

Control for accumulator, automatic dual core pulling, unscrewing device, dual air ejectors, photo-cell detector and extractor, etc.

Pre-setting product count.

Injection and mould data can be saved in computer or SD memory card.

Optional application of INET Network through internet remotely monitors production activities.

Multi-stage password protection, prevent data to be mistakenly changed easily.

Hydraulic Control

Use of highly efficient Japanese-made variable displacement piston pump can save energy consumption up to 50%

High pressure and high speed performance can be achieved by employing large displacement pump driven by high power electric motor

Use of imported brands hydraulic valves ensures highly precise moulding

Hydraulic blocks are mounted close to the actuators to reduce discrepancy

All-time hydraulic oil filtering (only used with variable displacement pump)

Clamping Unit	Item	Unit	SK50			SK80			SK110			SK160
	Clamping Type		Five-Point Vertical Double Toggles
	Clamping Force	Tons	50			80			110			160
	Space Between Tie-bars	mm	310x310			370x370			420x420			510x460
	Opening Stroke	mm	250			300			380			460
	Mould Height (Min-Max)	mm	150-330			150-350			200-450			150-550
	Max Daylight Opening	mm	580			650			830			1010
	Mould Locator Diameter	mm	?100H8			?100H8			?100H8			?120H8
	Ejector Force	ton	2.8			2.8			2.8			2.8
	Ejector Stroke	mm	76			76			120			170
	Number of Ejectors	pcs	5			5			5			5
Unit Injection	Screw Diameter	mm	22	25	30	25	30	35	30	35	40	45	50	55
	Shot Weight(PS)	g	48	62	89	62	89	121	104	142	185	288	355	430
		oz	1.7	2.2	3.2	2.2	3.2	4.3	3.7	5.0	6.5	10.2	12.6	15.2
	Shot Volume	cc	57	74	106	74	106	144	124	168	220	342	422	511
	Injection Pressure	kg/cm?2;	2459	1904	1322	2450	1701	1250	2518	1850	1416	2139	1733	1432
	Injection Rate	cc/sec	67	87	125	67	97	132	90	122	160	136	168	203
	Plasticizing Capacity	kg/h	22	31	50	25	40	62	44	68	97	91	116	151
	Screw Speed	r.p.m	360			288			315			215
	Screw Stroke	mm	150			150			175			215
	Nozzle Contact Force	Tons	3.9			3.9			3.9			4.7
	Hopper Capacity	L	40			40			40			40
Unit Others	Electric Motor Power	kW	12			12			18			23
	Heating Power	kW	5.3	5.8	6.8	5.9	6.7	8.0	6.7	7.9	8.7	11.00
	System Pressure	kg/cm?2;	175			175			175			175
	Oil Tank Capacity	L	150			210			230			280
	Machine Weight	Tons	2.9			3.3			4.0			6.5
	Dimension (LxWxH)	m	3.39x0.99x1.6			3.74x1.06x1.69			4.4x1.1x1.72			5.2x1.29x1.8

SK Series

SK Series High Speed & Precision Plastic Injection Moulding Machine

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