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2016 saw the 70th anniversary of Reel. 70 Years of innovation, know-how
and unique experience for your valuable projects.

Platts Rd, Amblecote, Stourbridge
West Midlands DY8 4YR.

+44 (0) 1384 370318

Warrington Office:

Reel UK Limited, Suite 410 @ 401, Faraday Street,

Birchwood Park,
Warrington WA3 6GA.

01925 873155.


For Overhead Lifting Equipment & Machinery

  • Frequency Hopping RF Transceiver
  • Transmitter Access Card (TAC)
  • Zero-G and Infrared Sensors Embedded
  • Wireless Remote Pairing and Programming
  • Contact and Contactless Battery Charging
  • Ergonomic, Compact and Lightweight
  • Ultra Durable, Rugged, Safe and Reliable
  • Fully Sealed Enclosures (IP66/NEMA4)
  • Unique Receiver Mounting Brackets
  • Backward Compatible with Flex EX Gen1

FLEX GEN 2 General Features

Frequency Hopping RF Transceiver

The Flex EX Gen2 system automatically search and lock onto a free and uninterrupted channel at every system startup or during operation when encountering radio interference. The  system is also capable of two-way communication between the transmitter and receiver and as well as receiver to receiver with status feedbacks (e.g. MAIN relays, output relays, inputs from external sources, and receiver fault detection).

Programmable Transmitter Access Card (TAC)

The optional transmitter access card feature (TAC) further guard against any unauthorised personnel from operating the system. The TAC can also be individually programmed unlocking any specific function or functions on the transmitter allowing a more experienced or qualified user to operate, such as the magnet lift, tandem operation, entering restricted areas, etc. The TAC is based on the RFID technology so any industry standard RFID cards or chips can be programmed into the transmitter, such as the commonly used employee RFID badges.

Zero-G Sensor Embedded

The transmitter is embedded with a Zero-G sensor to guard against any unintended control of the crane or equipment when transmitter is thrown or dropped. When triggered, the entire system will shut down with exception of the horn function (programmable).

Wireless Remote Pairing Function

System information can be transferred wirelessly between two transmitters or between a transmitter and a receiver without the hassle of resetting the spares.

Infrared Startup & System Programming

All Flex Gen2 transmitters and receivers are standard-equipped with infrared sensors for infrared system startup option and system wireless programming.

Advanced Controls

The system utilises dual advanced microprocessor controls with 32bit CRC and Hamming Code, providing ultra fast, safe, precise and error-free encoding and decoding.

Ultra Reliable Push-buttons

The in-house designed transmitter push-buttons have gold plated contacts and are rated for more than two million press cycles. The defined snap-action steps provide positive tactile feedback even wearing gloves.

Ultra Durable and Rugged Enclosures

The transmitter and receiver enclosures are made from industrial strength nylon and fibreglass composite material, not ABS plastic. All housings meet the IP66/NEMA4 requirements and are highly resistant to dirt, liquid, acid, alkali, grease and oil penetration. The receiver enclosures and output cables are UL94-V0 rated.

Compact and Lightweight

The ergonomically designed transmitter and receiver enclosures are extremely compact and lightweight for easy operation and installation.

Unique Mounting Bracket

The receiver mounting brackets are uniquely designed for easy mounting and dismounting.

Low Power Consumption & Versatility

The transmitter requires only two “AA” alkaline batteries with more than 100 hours of uninterrupted operation between replacements. If rechargeable method is preferred, any off-the-shelf high capacity Ni-MH rechargeable batteries can be used in conjunction with the in-house designed contact or contactless (inductive) charging station, fully interchangeable.

Abundant Programmable Functions

All functions and settings are easily set via push-buttons, dipswitches, jumpers, and in-house designed programmer unit. Customised functions can also be added upon request.

Full Systems Compatibility

The software and hardware are fully compatible regardless of model type, minimising spare parts inventory. The transmitters are also backward compatible with all Gen1 receivers.

Pre-wired Output Cable

A pre-wired cable is standard equipment on all Flex EX Gen2 systems.

Pitch & Catch Operation

This standard-equipped function allows two operators controlling from opposite ends of a crane or equipment.

Tandem Operation

This function allows one operator controlling two cranes at the same time via a 3-position A/B/A+B rotary select switch. A special tandem output is provided for external tandem box connection.

Random Access Operation

This function allows multiple operators randomly controlling multiple cranes on a first come - first served basis.

Multiple Receivers Operation

This function allows one operator controlling up to ten receivers or equipment at the same time.

Worldwide Approvals

The Flex EX Gen 2 systems are fully tested and certified in accordance with the FCC Part-15 Rules and European Safety Standards such as the EN 301 489-1&3, EN 300 220-1&2, EN 60204-32, EN 60950, EN 60529 and EN 13849-1 Category PLd.

Labels & Accessories*

Flex EX Gen 2 system is standard-equipped with legends, waist belt, vinyl casing, receiver mounting bracket, Rubber Guards and output cable. *Magnet Mount, Belt Clip, Lanyard, Indicator Light, Buzzer, Charging Stations, Transmitter Access Cards are optional.

General Specifications

Frequency Range:

433~434MHz & 863~870MHz


Digital frequency modulation based on Manchester Code, 20bit address, 32bit CRC Parity Check and Hamming Code

Encoding / Decoding Reference:

 Advanced microprocessor controlled

Operating Range:

>100 Meters / 300 Feet

Frequency Control:

Synthesised PLL

Responding Time:

40mS (average)

Receiver Sensitivity:


Transmitter Voltage:


Output Contact Rating:

250VAC @ 8A

Receiver Voltages:

Flex 4ES/EX & 6ES/EX models

•24VAC @ 50/60Hz • 42VAC @ 50/60Hz

•48VAC @ 50/60Hz • 110~120VAC @ 50/60Hz

•220~240VAC @ 50/60Hz • 380~400VAC @ 50/60Hz

•410~460VAC @ 50/60Hz • 9~36VDC

Flex 8ES/EX & 12ES/EX models:

•110~120/220~240/380~400/410~460VAC @ 50/60Hz

•24/42/48VAC @ 50/60Hz •9~36VDC

Enclosure Rating:

IP66 / NEMA4

Operating Temperature:

-25°C ~ 75°C / -13°F ~ 167°F

Transmitter Dimensions:

Flex 4ES/EX models: 152mm (L) x 70mm (W) x 44mm (H)

Flex 6ES/EX models: 175mm (L) x 70mm (W) x 44mm (H)

Flex 8ES/EX models: 198mm (L) x 70mm (W) x 44mm (H)

Flex 12ES/EX models: 244mm (L) x 70mm (W) x 44mm (H)

Receiver Dimensions:

Flex 4ES/EX & 6ES/EX models:

196mm (L) x 149mm (W) x 85mm (H)

Flex 8ES/EX & 12ES/EX models:

260mm (L) x 204mm (W) x 83mm (H)

Transmitter Weights:

Flex 4ES/EX models: 249g / 8.8oz (include batteries)

Flex 6ES/EX models: 270g / 9.5oz (include batteries)

Flex 8ES/EX models: 292g / 10.3oz (include batteries)

Flex 12ES/EX models: 341g / 12.0oz (include batteries)

Receiver Weights:

Flex 4ES/EX & 6ES/EX models:

 1.76kg / 3.8lb (include output cable)

Flex 8ES/EX models: 2.75kg / 6.1lb (include output cable)

Flex 12ES/EX models: 3.15kg / 6.9lb (include output cable)

Reel UK reserve the right to change model specifications, colours or materials without prior notice

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REEL UK Ltd. © Copyright 2017 Reel UK Ltd. Design by Steve Jolliffe

01384 370318