※No scaffolding required! Equipped with the latest GPR!

Accurate rebar location and depth
can be measured by remote control!

Flex NX※In some cases, such as on the underside of slabs (ceilings), a scaﬀold or scooter may be required.

NX 25
Sticks and travels on walls and ceilings of concrete structures!
Practical application on site!

Suction type wall/ceiling traveling robot

SPIRADER

Equippedwith the latest GP®

World's first practical application!

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Jointly developed by East Japan Railway Company and ONGA Engineering Co in Japan.
SPIRADER is a registered trademark of ONGA Engineering Co.

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Abnormal sticking detection function

Collision prevention sensor©2023 East Japan Railway Company*Appearance and speciﬁcations are subject to change without notice.

Suction-type wall/ceiling traveling robot isutilized to save labor for rebar assessment!

Rebar corrosion inside reinforced concrete is aﬀected by the depth from the surface to the rebar (rebar cover).
Rebar exploration is sometimes performed in the planning of surface repair work to prevent rebar corrosion.
Conventional rebar inspection is a manual process that requires time and labor to move and install an elevated work
vehicle to the measurement position. By using this robot, the movement of each measurement point can be greatly
simpliﬁed and labor saving can be expected!

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GPR Equipped: The robot can detect buried pipes such as electric conduit, gas and water pipes (CDpipes, plastic pipes, and other non-metallic pipes), concrete thickness, asphalt pavement thickness,and tunnel lining thickness, cracks as well as reinforcing steel bars!

Improved safety and efficiency!
Conventional MethodMeasurementby manpower

Practical use in bridges in the field!

After development

Reliable rebar depth inspection!

Concrete

Remote control on the ground↓

Improved safety and efficiency

SPIRADER

Vacuum is generated
by exhausting the air
with a suction fan to stick the machine.
GPR is installedin the vacuum chamber
to measure rebar depth.
Power supply box

Propo for operation

Time-consuming to maneuver
an elevating vehicle

Generator (for suction fan)

It can be used even if there isno space under the elevated structure©2023 East Japan Railway Company

Generator (for traveling motor)

Suction type wall/ceiling traveling robot "SPIRADER"
Components and Specifications
Suction type wall/ceiling traveling robot

SPIRADER

Generator

Power supply box©2023 East Japan Railway Company

Propo for operation

Safety equipment

SPIRADER Specifications
Main unit dimensions: approx. W408xD575x232.5mm
Weight: approx. 19.5 kg (including electromagnetic radar, robot unit approx. 18.5 kg)
Traveling speed: Maximum speed = 25 cm/s, measuring speed = 20 cm/s
Sticking method: High-speed turbo exhaust system
Power supply method: External power supply (3kVA generator) via power cable
Travelling safety device: Infrared distance sensor mounted in front to prevent collision
with walls, etc. and to prevent overstepping.
Suction abnormality detection function: Vacuum pressure in suction is monitored in real timeby a pressure sensor.
Blue LED indicates safe sticking area and red LED indicates dangerous area.
Safety equipment (fall protection): Load capacity 800 kg

Suction cupGenerators
and Vacuum Pump

©2023 East Japan Railway Company

It is planned to be equipped with GPR and rebar corrosion detector!

A rebar corrosion detector is also planned to beinstalled in the future.
Accurate rebar location and depth can be measured by remote control.
the latest GPR!

ConcreteFlex NX
Rebar

iCOR

Rebar corrosion detector

iCOR

NX 25

NX 25

Please contact us by email using the contact information below.
E-mail：overseas@key-t.co.jp