MK Economy Safety Light Curtain (ESPE)

Name: MK Economy Safety Light Curtain
Brand: DAIDISIKE
SKU: MK-SERIES

Cost-effective presence sensing safety device for general machinery and automation cells. Slim 25×23 mm body with resolutions 10/14/20/40 mm and protective heights of 70–7960 mm (up to 200 beams); standard detection distance 0.3–3 m (0.3–6 m as a special build); typical response time ≤ 15 ms. Transistor outputs with NPN/PNP signal selection, 3-core or 5-core wiring.

Finger/palm protection examples

Body/perimeter guarding

Compact 25×23 mm housing

Product Highlights

Up to 200 beams — protective heights from 70 mm to 7960 mm from a single economy pair.
≤15 ms response shortens the ISO 13855 safety distance while maintaining protection.
0.3–3 m standard detection distance, 0.3–6 m as a special build; status LEDs for power/blocked states ease troubleshooting.
Slim 25×23 mm body — the smallest section in the range — with 3-core or 5-core wiring.
Mounting: DQCA-01/02/03 plus MK-01 (side fixing) and MK-02 (top/bottom).
Through-beam AOPD designed with reference to IEC 61496 and the machinery-safety standards ISO 13849 / ISO 13855; combine with a certified safety relay/PLC.

No type class (Type 2 / Type 4) or performance level is published for the MK series, nor a confirmed supply voltage, IP rating, operating temperature or housing material — none of these are stated on this page. Contact the factory for the confirmed values, or use the DQT4 series where a documented rating is required.

Resolution & Application Guide

Resolution (K)	Typical Application
10 mm / 14 mm	Finger protection (assembly, fixtures, close-to-hazard stations)
20 mm	Palm protection (packaging, access openings)
40 mm	Hand/arm or body presence (aisles, zone guarding)

Protective height H = (n − 1) × K. Overall length L = P + H + J + 20 (10 mm allowance at each end). P/J depend on resolution; see spec tabs.

Technical Parameters (MK Series)

Category	Item	Typical Value / Option	Notes
Optical	Operating principle	Through-beam infrared LED (modulated)	Emitter/receiver pair with anti-interference design
	Resolution (K)	10 / 14 / 20 / 40 mm	Finger / Palm / Hand-arm or Body
	Protective height (H)	H = (n − 1) × K	n = number of beams
	Response time	≤ 15 ms	Varies with beam count
	Detection accuracy	Follows beam pitch (finest 10 mm)	See model list
	Detection distance	0.3–3 m standard / 0.3–6 m special	Specify on order
Electrical / I/O	Outputs	Transistor, NPN/PNP signal selection	Specify on order
	Wiring	3-core or 5-core	Per build
	Supply voltage	Contact factory	Not published for the MK series
	Indicators	Power / Run / Blocked LEDs	Front facing
Mechanical / Environment	Body section	25 × 23 mm (rectangular)	Housing material: contact factory
	Overall length	L = P + H + J + 20	10 mm allowance at each end
	Ingress protection	Contact factory	Not published for the MK series
	Operating temp.	Contact factory	Not published for the MK series
	Mounting	DQCA-01/02/03, MK-01, MK-02	MK-01 side fixing; MK-02 top/bottom
Compliance	Standards	Through-beam AOPD designed with reference to IEC 61496; safety distance per ISO 13855	No type class (Type 2/4) or performance level is published for this series — confirm with the factory
Compliance	System integration	Safety relay / Safety PLC	Independent dual inputs; do not tie channels together

MK Series Detailed Specifications

Tabs list the catalogued beam counts (n) for each beam pitch (K) with protective height H and overall length L. Model format: MK{beams}-{pitch}-{height}NA. Example: MK06-20-100NA (n=6, K=20, H=100). Detection distance: 0.3–3 m standard, 0.3–6 m special.

K (mm)	Beams n	Protective Height H (mm)	P/J (mm)	Overall Length L (mm)	Model Example	Distance
10	8	70	5/10	105	MK08-10-70NA	0.3–3 m std / 0.3–6 m special
10	10	90	5/10	125	MK10-10-90NA	0.3–3 m std / 0.3–6 m special
10	12	110	5/10	145	MK12-10-110NA	0.3–3 m std / 0.3–6 m special
10	14	130	5/10	165	MK14-10-130NA	0.3–3 m std / 0.3–6 m special
10	16	150	5/10	185	MK16-10-150NA	0.3–3 m std / 0.3–6 m special
10	18	170	5/10	205	MK18-10-170NA	0.3–3 m std / 0.3–6 m special
10	20	190	5/10	225	MK20-10-190NA	0.3–3 m std / 0.3–6 m special
10	22	210	5/10	245	MK22-10-210NA	0.3–3 m std / 0.3–6 m special
10	24	230	5/10	265	MK24-10-230NA	0.3–3 m std / 0.3–6 m special
10	26	250	5/10	285	MK26-10-250NA	0.3–3 m std / 0.3–6 m special
10	28	270	5/10	305	MK28-10-270NA	0.3–3 m std / 0.3–6 m special
10	30	290	5/10	325	MK30-10-290NA	0.3–3 m std / 0.3–6 m special
10	32	310	5/10	345	MK32-10-310NA	0.3–3 m std / 0.3–6 m special
10	34	330	5/10	365	MK34-10-330NA	0.3–3 m std / 0.3–6 m special
10	36	350	5/10	385	MK36-10-350NA	0.3–3 m std / 0.3–6 m special
10	38	370	5/10	405	MK38-10-370NA	0.3–3 m std / 0.3–6 m special
10	40	390	5/10	425	MK40-10-390NA	0.3–3 m std / 0.3–6 m special
10	42	410	5/10	445	MK42-10-410NA	0.3–3 m std / 0.3–6 m special
10	44	430	5/10	465	MK44-10-430NA	0.3–3 m std / 0.3–6 m special
10	46	450	5/10	485	MK46-10-450NA	0.3–3 m std / 0.3–6 m special
10	48	470	5/10	505	MK48-10-470NA	0.3–3 m std / 0.3–6 m special
10	50	490	5/10	525	MK50-10-490NA	0.3–3 m std / 0.3–6 m special
10	52	510	5/10	545	MK52-10-510NA	0.3–3 m std / 0.3–6 m special
10	54	530	5/10	565	MK54-10-530NA	0.3–3 m std / 0.3–6 m special
10	56	550	5/10	585	MK56-10-550NA	0.3–3 m std / 0.3–6 m special
10	58	570	5/10	605	MK58-10-570NA	0.3–3 m std / 0.3–6 m special
10	60	590	5/10	625	MK60-10-590NA	0.3–3 m std / 0.3–6 m special
10	62	610	5/10	645	MK62-10-610NA	0.3–3 m std / 0.3–6 m special
10	64	630	5/10	665	MK64-10-630NA	0.3–3 m std / 0.3–6 m special
10	66	650	5/10	685	MK66-10-650NA	0.3–3 m std / 0.3–6 m special
10	68	670	5/10	705	MK68-10-670NA	0.3–3 m std / 0.3–6 m special
10	70	690	5/10	725	MK70-10-690NA	0.3–3 m std / 0.3–6 m special
10	72	710	5/10	745	MK72-10-710NA	0.3–3 m std / 0.3–6 m special
10	74	730	5/10	765	MK74-10-730NA	0.3–3 m std / 0.3–6 m special
10	76	750	5/10	785	MK76-10-750NA	0.3–3 m std / 0.3–6 m special
10	78	770	5/10	805	MK78-10-770NA	0.3–3 m std / 0.3–6 m special
10	80	790	5/10	825	MK80-10-790NA	0.3–3 m std / 0.3–6 m special
10	82	810	5/10	845	MK82-10-810NA	0.3–3 m std / 0.3–6 m special
10	84	830	5/10	865	MK84-10-830NA	0.3–3 m std / 0.3–6 m special
10	86	850	5/10	885	MK86-10-850NA	0.3–3 m std / 0.3–6 m special
10	88	870	5/10	905	MK88-10-870NA	0.3–3 m std / 0.3–6 m special
10	90	890	5/10	925	MK90-10-890NA	0.3–3 m std / 0.3–6 m special
10	92	910	5/10	945	MK92-10-910NA	0.3–3 m std / 0.3–6 m special
10	94	930	5/10	965	MK94-10-930NA	0.3–3 m std / 0.3–6 m special
10	96	950	5/10	985	MK96-10-950NA	0.3–3 m std / 0.3–6 m special
10	98	970	5/10	1005	MK98-10-970NA	0.3–3 m std / 0.3–6 m special
10	100	990	5/10	1025	MK100-10-990NA	0.3–3 m std / 0.3–6 m special
10	102	1010	5/10	1045	MK102-10-1010NA	0.3–3 m std / 0.3–6 m special
10	104	1030	5/10	1065	MK104-10-1030NA	0.3–3 m std / 0.3–6 m special
10	106	1050	5/10	1085	MK106-10-1050NA	0.3–3 m std / 0.3–6 m special
10	108	1070	5/10	1105	MK108-10-1070NA	0.3–3 m std / 0.3–6 m special
10	110	1090	5/10	1125	MK110-10-1090NA	0.3–3 m std / 0.3–6 m special
10	112	1110	5/10	1145	MK112-10-1110NA	0.3–3 m std / 0.3–6 m special
10	114	1130	5/10	1165	MK114-10-1130NA	0.3–3 m std / 0.3–6 m special
10	116	1150	5/10	1185	MK116-10-1150NA	0.3–3 m std / 0.3–6 m special
10	118	1170	5/10	1205	MK118-10-1170NA	0.3–3 m std / 0.3–6 m special
10	120	1190	5/10	1225	MK120-10-1190NA	0.3–3 m std / 0.3–6 m special
10	122	1210	5/10	1245	MK122-10-1210NA	0.3–3 m std / 0.3–6 m special
10	124	1230	5/10	1265	MK124-10-1230NA	0.3–3 m std / 0.3–6 m special
10	126	1250	5/10	1285	MK126-10-1250NA	0.3–3 m std / 0.3–6 m special
10	128	1270	5/10	1305	MK128-10-1270NA	0.3–3 m std / 0.3–6 m special
10	130	1290	5/10	1325	MK130-10-1290NA	0.3–3 m std / 0.3–6 m special
10	132	1310	5/10	1345	MK132-10-1310NA	0.3–3 m std / 0.3–6 m special
10	134	1330	5/10	1365	MK134-10-1330NA	0.3–3 m std / 0.3–6 m special
10	136	1350	5/10	1385	MK136-10-1350NA	0.3–3 m std / 0.3–6 m special
10	138	1370	5/10	1405	MK138-10-1370NA	0.3–3 m std / 0.3–6 m special
10	140	1390	5/10	1425	MK140-10-1390NA	0.3–3 m std / 0.3–6 m special
10	142	1410	5/10	1445	MK142-10-1410NA	0.3–3 m std / 0.3–6 m special
10	144	1430	5/10	1465	MK144-10-1430NA	0.3–3 m std / 0.3–6 m special
10	146	1450	5/10	1485	MK146-10-1450NA	0.3–3 m std / 0.3–6 m special
10	148	1470	5/10	1505	MK148-10-1470NA	0.3–3 m std / 0.3–6 m special
10	150	1490	5/10	1525	MK150-10-1490NA	0.3–3 m std / 0.3–6 m special
10	152	1510	5/10	1545	MK152-10-1510NA	0.3–3 m std / 0.3–6 m special
10	154	1530	5/10	1565	MK154-10-1530NA	0.3–3 m std / 0.3–6 m special
10	156	1550	5/10	1585	MK156-10-1550NA	0.3–3 m std / 0.3–6 m special
10	158	1570	5/10	1605	MK158-10-1570NA	0.3–3 m std / 0.3–6 m special
10	160	1590	5/10	1625	MK160-10-1590NA	0.3–3 m std / 0.3–6 m special
10	162	1610	5/10	1645	MK162-10-1610NA	0.3–3 m std / 0.3–6 m special
10	164	1630	5/10	1665	MK164-10-1630NA	0.3–3 m std / 0.3–6 m special
10	166	1650	5/10	1685	MK166-10-1650NA	0.3–3 m std / 0.3–6 m special
10	168	1670	5/10	1705	MK168-10-1670NA	0.3–3 m std / 0.3–6 m special
10	170	1690	5/10	1725	MK170-10-1690NA	0.3–3 m std / 0.3–6 m special
10	172	1710	5/10	1745	MK172-10-1710NA	0.3–3 m std / 0.3–6 m special
10	174	1730	5/10	1765	MK174-10-1730NA	0.3–3 m std / 0.3–6 m special
10	176	1750	5/10	1785	MK176-10-1750NA	0.3–3 m std / 0.3–6 m special
10	178	1770	5/10	1805	MK178-10-1770NA	0.3–3 m std / 0.3–6 m special
10	180	1790	5/10	1825	MK180-10-1790NA	0.3–3 m std / 0.3–6 m special
10	182	1810	5/10	1845	MK182-10-1810NA	0.3–3 m std / 0.3–6 m special
10	184	1830	5/10	1865	MK184-10-1830NA	0.3–3 m std / 0.3–6 m special
10	186	1850	5/10	1885	MK186-10-1850NA	0.3–3 m std / 0.3–6 m special
10	188	1870	5/10	1905	MK188-10-1870NA	0.3–3 m std / 0.3–6 m special
10	190	1890	5/10	1925	MK190-10-1890NA	0.3–3 m std / 0.3–6 m special
10	192	1910	5/10	1945	MK192-10-1910NA	0.3–3 m std / 0.3–6 m special
10	194	1930	5/10	1965	MK194-10-1930NA	0.3–3 m std / 0.3–6 m special
10	196	1950	5/10	1985	MK196-10-1950NA	0.3–3 m std / 0.3–6 m special
10	198	1970	5/10	2005	MK198-10-1970NA	0.3–3 m std / 0.3–6 m special
10	200	1990	5/10	2025	MK200-10-1990NA	0.3–3 m std / 0.3–6 m special

Standard detection distance is 0.3–3 m; 0.3–6 m is a special build — state which you need when ordering. Keep the model format MK{beams}-{pitch}-{height}NA, e.g. MK08-10-70NA.

Typical Applications

Presses / shears / press brakes: 10–20 mm resolutions suit finger and hand protection; the ≤15 ms response enables a shorter safety distance.
Assembly fixtures & robot periphery: finger/palm detection with interlocked safety loop; easy maintenance.
Packaging / logistics: 40 mm and above for aisle and presence detection.
General machinery: integrate with a safety relay/PLC for stop, interlock and EDM monitoring.

Safety distance reference (ISO 13855): S = K × T + C, where T is machine stopping time.

Frequently Asked Questions

What resolution should I choose for finger or hand protection?

Pick resolution by what you are guarding. 10 mm and 14 mm give finger protection at close-to-hazard stations; 20 mm covers palm/hand protection; 40 mm suits hand-arm or body presence in aisles and zone guarding. Finer 14 mm detection follows the common finger-protection threshold used with ISO 13855 safety-distance calculations.

What is the detection distance of the MK light curtain?

The standard MK covers 0.3–3 m between emitter and receiver; 0.3–6 m is available as a special build. State which one you need when ordering, and allow margin for dust, alignment drift and ageing rather than mounting at the limit of the class.

How do I wire the outputs — NPN or PNP?

The MK uses transistor outputs with an NPN/PNP signal selection, wired by 3-core or 5-core cable. PNP (sourcing) is standard for most modern PLCs and safety relays. Keep the channels independent — never tie them together — and route them through a certified safety relay or safety PLC with EDM feedback.

Is the MK a Type 4 / PL e device on its own?

No rating is claimed. The MK is an economy through-beam AOPD designed with reference to IEC 61496 and to the machinery-safety standards ISO 13849 / ISO 13855, intended to be combined with a certified safety relay or safety PLC to form the protective function. DAIDISIKE has not published a type classification or performance level for the MK series — request the current test documentation from the factory, or specify the DQT4 series where a documented Type 4 / PL e / SIL 3 rating is required.

Can the MK replace an Omron, SICK or Keyence finger-protection light curtain?

In many general-machinery cells, mechanically yes. The MK matches common resolutions (10/14/20/40 mm) with through-beam infrared operation and NPN/PNP transistor outputs, so it can serve as a cost-effective alternative to SICK deTec, Omron F3SG or Keyence units — and it reaches 200 beams, for protective heights up to 7960 mm. Match resolution, protective height H and response time to the original, and where the original carried a certified Type/PL rating confirm the equivalent documentation with the factory.

Specs reviewed by Engineer Cai, Senior Application Engineer. See certificates.

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Safety Light Curtain — Customer Cases

Real installations from DAIDISIKE clients. Click any case to view in full. Filter by scenario to quickly find a similar setup.

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