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.

3D CAD Downloads

Browse all downloads

3D CAD MODELS

Find the file for your exact model

Open the download center with the named series selected. Search your full model, check the file details and download the matching STEP file.

Find MK CAD Models

Confirm the document and CAD file match your exact ordered version before installation or mechanical design. Contact us if your model is not listed.

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

Share this page

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.

Safety light screen guarding on a press machine — compact hand protection — Press Guarding · Safety Light Screen
PressCompactType 4

Safety light barrier around a robot cell perimeter — Robot Cell · Safety Light Barrier
RobotPerimeterType 4

Anti-interference setup for adjacent safety light screens under strong ambient light — Anti-Interference · Adjacent Installations
Anti-InterferenceType 4

Guarding light curtain at an access gate for safe entry — Access Gate · Guarding Light Curtain
AccessType 4

Compact light screen for hand protection on a workstation — Workstation · Compact Light Screen
AssemblyCompact

Machine safety light curtain on a packaging line infeed — Packaging Line · Machine Safety Light Curtain
PackagingType 4

Multi-beam safety device for large opening protection — Large Opening · Multi-Beam Safety Device
Large OpeningArea

Photoelectric safety light curtain along an assembly conveyor — Assembly Conveyor · Photoelectric Light Curtain
AssemblyType 4

Safety light array for detection and measurement tasks — Detection · Safety Light Array (Measurement)
Measurement

Safety light grid for wide area guarding — Area Guarding · Safety Light Grid
AreaType 2/3