General description

The MINEX 4.600 metal detector works on the continuous-wave dual frequency method with one transmission coil and differential receiver coil. It is newly-designed, with rugged hardware that follows Military standards. Audible and visual indication of targets is included. A special military mode can be set. The one-piece design is ergonomic and compact. All control and display elements are integrated into the handle. The loudspeaker is built in, with an adjustable volume that is muted when the headphone is connected. There is a detailed visual display of signal strength featuring 14 LEDs.

The one-piece design aims to make the machine quick to put into operation, low in weight and precisely-balanced, mechanically durable and with as few mechanically “weak points” like cables or plugs as possible. The telescopic bar with improved fast-lock clips keeps the searchhead in the chosen position. The removable arm rest is adjustable, with three positions.

A digital data interface allows ground condition data to be downloaded for further parameter improvement. The same data interface allows software-updates by the customer.Using the optional available MINEX-software data can read out for troubleshooting and real-time signals can be displayed on a PC.

Safety considerations strongly influenced the MINEX development. An audible alarm informs the operator about malfunctions. Low battery levels are indicated by a red LED. When the battery level is critically low, an additional audible alarm is activated. Extra safety is ensured by a steady ticking sound indicating proper function of the unit.

Using two frequencies, all metals can be found with approximately the same sensitivity setting.

Working characteristics

By using a static principle, there is no minimum speed for the movement of the coil. The different arrangement of the search coil means that metallic objects are indicated by two different sounds, that switch when the centre of the searchhead or coil passes over an object. Thus it is possible to pinpoint objects exactly, to separate objects close to each other and to work alongside big metal objects such as fences, railways and gates. 50/60 Hz frequencies are suppressed

As an example, minimum metal mines in a horizontal distance of about 10-15cm from each other can be separated and localised. The only steady background noise is an unobtrusive control-tick .

Salt and fresh water does not influence the MINEX’s detection capabilities. Non-cooperative soil types identified on site can be compensated with the simple push-button ground-learning device. This ensures that the detector is adapted to particular soils without choosing and using pre-set soil types.

Detectors in use to date

- The previous instrument MINEX 2FD 4.530 has been in used by demining forces in Africa and Asia since early 2006.

- The MINEX 2FD 4.500 has been in service since 2000, mainly in Afghanistan, Australia, Austria, Croatia, Denmark, Egypt, France, Guinea Bissau, India, Mozambique, Oman, Portugal, Spain, Switzerland, Tunisia, the U.S. and Vietnam.

- The previous version, MINEX 2FD 4.400 with identical features to the 4.500 version, has been in field use since 1991.

The MINEX 2 FD series is in service with humanitarian deming and military forces in more than 30 countries.

Power supply

As standard, the MINEX 4.600 is powered by three 1.5 V D cells. Rechargeable batteries can be used, varying the indicated operating-times, depending on their quality and age. Battery-charge status is indicated visually and audibly (empty-low-medium-high) when switching on the detector.

The sensitivity and detection quality is not influenced by the battery conditions under any circumstances.

At 20°C, approximately 30 hours of continuous operation are generated. With a normal operating schedule (four hours twice a day) a total operating time of approximately 50h can be achieved.

Under most circumstances, one set of batteries ensures sufficient supply for one working week.

Factory support

Spare parts are available exclusively from Foerster. Rechargeable and Alkaline batteries can be purchased on the free market.

Besides Foerster’s direct support, the company is represented in more than 40 countries, most of them offering complete after-sales service.

Foerster also provides on-site training and has modern test and training areas at the facilities in Reutlingen, Germany. These areas offer excellent training conditions for mine/ERW search under various scenarios. A full training programme for trainers – including lessons on background knowledge and various training materials – is available in German and English. Training can be requested as part of the purchase package. Manuals and service documentation are available in German and English as standard. Other languages on request.

Maintenance and support

MINEX maintenance is at two levels: basic field maintenance and workshop maintenance. Personnel handling a workshop must have some basic knowledge of mechanical and electronic repairs. Foerster can supply complete tool sets and testing equipment as well as service training. Fully equipped workshops with trained personnel can handle all repairs to factory final assembly level.

Test and evaluation

Foerster tests its equipment within its own facilities, mainly for research and quality control, for the most part and as far as possible under “real” conditions. This includes the targets (mines and ERW) as well as the circumstances (soil, disturbing influences, etc.). The results are not available publicly but the Foerster training site allows interested customers to see the equipment working under these conditions.

As the MINEX 4.600 is new, no independent test reports are yet available.

Technical specification


Foerster MINEX 4.600
Detection technology used
Dual frequency continuous wave method with one transmission coil and differential receiver coil
Detector systems
Metal detectors

Dimensional data

Working length

Min. length
657 mm
Max. length
1'677 mm

Search head

59'850 mm

Transport case

8 kg
With equipment (full)
10 kg
968 x 406 x 155 mm
Hard | Soft case (material)
Plastic hardcase, backpack optional
Weight, Hand-held unit
2 kg
Weight, carrying (operational detection set)
3 kg
Weight, additional equipment
1 kg

System status and deployment

In development
Other types/models
MINEX 2 FD 4.530, 4.500 and 4.400
Location of use
Humanitarian and military demining

Environmental influence

Humidity (limitations)
No limitation
Water resistant
Shock/Vibration resistant
Acc. MIL STD 810
Environmental compensation

Temperature (limitations)

71 to 71 °C
-37 to 71 °C

Operational hours/Operating endurance

At around 0°C
25 h
At around 20°C
30 - 40 h
At around 30°C
30 - 40 h

Detection operation

Calibration / Set-up


Detection range/Sensitivity details/Detection performance / Working depth

Small metal content mines
72 A/ approx. 18 cm
Anti tank mines
TM 62 M / up to 60 cm
For UXO Foerster offers highly-specialized magnetometers
Output indicator (sound/display/other)
Audio by built-in piezoelectric loudspeaker or headphones, visual indication of targets (integrated into the handle), with special military mode
Pinpointing feature
Two different sounds, switching when passing an object with the centre of the search head
Adjustment of search head angle
Soil influence
Up to a certain rate automatic adaption (e.g. salt water); aggressive magnetic soil can be learned; the ground learning procedure can be started by pressing the GND-button
Best use in
Sand Sand
Peat Peat
Clay Clay
Ferruginous soil (laterite) Ferruginous soil (laterite)
Optimal sweep speed
Signal quality not speed dependent. No particular limit
Search coil/antenna
Differential coil system (1 sending, 2 receiving coils). Printed multi-layer construction
Not usable by divers
Interference (with other detectors)
5 m


Power supply/source
3 x 1.5 V batteries or 3 x 1.2 V rechargeable batteries; battery size IEC LR 20 ( according to ANSI STD - size
Operating time
Batteries approx. 40 hours, rechargeable batteries approx. 30 hours at an ambient temperature of + 20°C

Power supply

Batteries - 0.4 kg, rechargeable batteries - 0.5 kg
3 x 1.5 V batteries or 3 x 1.2 V rechargeable batteries; battery size IEC LR 20 (according to ANSI STD size -


Base price for the unit (US$)

Reduction for higher quantity
Price with training

Complete system price (US$)

Spare parts
Depending on quantity
Extended warranty
Available on request
Possible to rent


Duration of warranty
24 months
Additional equipment
Headphones, backpack, case, data transfer cable, carrying strap,workshop equipment and tools
Additional technical data
Service manuals, training programme

Approved by

Compliant standards
Military , Civil
Record updated on : 04 November 2014 Record id : 1

The GICHD would like to thank the Government of the Federal Republic of Germany for its generous financial support for this project.