Product Description:
KGM12200GS plateau type three folding arm arch frame trolley is a high-performance specialized equipment developed by Changsha
Keda Intelligent Equipment Co., Ltd. for high-altitude, low oxygen
environment and complex geological tunnel construction. This device
integrates mechanical, electro-hydraulic, and intelligent control,
and is widely used for arch installation operations in railway,
highway, water conservancy tunnels, and other engineering projects,
especially suitable for the construction conditions of the
three-step method.
1. Three level folding arm structure design
Adopting a folding arm structure consisting of a first stage arm, a
second stage arm, and a third stage arm, the arm frames are linked
by hydraulic cylinders, providing a wide range of deployment and
high flexibility. It can achieve multi angle and multi posture arch
positioning in a narrow three-step space. The end of the arm frame
is equipped with an automatic arch support adjustment device, which
detects the horizontal and vertical angles of the arch frame in
real time through high-precision inclination sensors, achieving
automatic calibration of the arch frame posture.
2. Plateau adaptability design
Equipped with a high-altitude dedicated engine and hydraulic
system, it can operate stably in low temperature and low oxygen
environments above 3500 meters. The hydraulic system adopts
low-temperature anticoagulant hydraulic oil and intelligent
temperature control module to ensure smooth operation in extreme
environments.
3. Intelligent control system
Integrated PID control algorithm, real-time feedback of boom
posture through tilt sensors (installed on each stage of the boom),
achieving dynamic self balancing adjustment. The control system
adopts an electronic control handle and a human-machine interaction
interface, supporting three modes: manual, semi-automatic, and
fully automatic, reducing operational difficulty and labor
intensity.
4. Security protection system
Equipped with a patented protective shield descent system, it can
quickly deploy the protective shield and activate the descent
device in case of sudden rockfall at the top of the tunnel,
ensuring the safe evacuation of personnel. Equipped with multiple
safety mechanisms such as arm collision warning, overload
protection, and attitude limit.
Features:
1. Adapt to multi-stage segmented construction
In the construction of the three-step method, the tunnel is
excavated in three steps: upper, middle, and lower. The three
folding arms of KGM12200GS can operate independently at different
step heights:
Step up: After the arm frame is deployed, it can reach the arch top
and accurately locate the arch frame;
Middle and lower steps: The folding arm can be adjusted
horizontally or diagonally to avoid interference from step slopes
and achieve installation of side wall arches.
The equipment can quickly move between steps and operate in
parallel with excavation and slag removal processes, reducing the
construction period.
2. Precise control of arch posture
By using tilt sensors and PID control (patented technology),
real-time compensation is provided for arch tilt caused by uneven
excavation surfaces, ensuring that arch installation meets design
parameters (horizontal error ≤± 1 °, vertical error ≤± 0.5 °).
Avoiding manual measurement errors and significantly improving the
quality of initial support.
3. Reduce temporary support and manual intervention
The traditional three-step construction requires frequent
installation of scaffolding or temporary platforms, while the
KGM12200GS can be flexibly positioned through the boom and directly
operated at high altitude, reducing auxiliary processes.
Operators only need 1-2 people (traditional methods require 6-8
people), reducing safety risks and labor costs.
4. High synergy with the three-step method
Match the equipment operation rhythm with the three step excavation
cycle:
After excavating the upper steps, quickly install the arch frame;
When following up on the middle and lower steps, synchronize the
side wall support;
During the construction phase of the inverted arch, the arm frame
is retracted to make way for space and avoid equipment occupation.
Support joint operation with self-propelled inverted arch wharf to
achieve support closure lining flow construction.
5. Ability to deal with adverse geological conditions
Three step construction often encounters fractured surrounding rock
or fault zones, and the equipment is equipped with:
Rapid support capability: Shorten the exposure time of surrounding
rock and control deformation;
Advanced geological adaptation: It can be linked with TSP,
geological radar and other prediction systems to adjust support
strategies.
Technical Parameters:
| Dual Power | Diesel & Electric |
| Model | Arch Installation Robot KGM12200SG |
| Total Weight | 29t |
| Transportation Dimension (L X W X H) | 11000×2800×4300mm |
| Max. Operating Width | 15m |
| Minimum Turning Radius | Inner 3.0/Outer 7.5 |
| Maximum Load-bearing Capacity of The Auxiliary Arm | 2000Kg |
| Min. Operating Width | 12m |
Applications:
The KGM12200GS plateau type three folding arm arch trolley is ideal
for fulfilling the efficiency, accuracy, and safety demands of
three-step construction. This is accomplished through its
intelligent control system, multi-level arm flexibility, and
specialized plateau design. It is especially well-suited for
tackling challenging projects like western plateau tunnels and
railway deep buried tunnels. This innovative device has been
successfully utilized in numerous national key tunnel projects,
establishing itself as a benchmark product for enhancing the
mechanization level of tunnel construction.
Customization:
Product Customization Services for the Arch Installation Trolley
Brand Name: POTENTIAL / POTENCY
Model Number: KGM12200SG
Place of Origin: CHINA
Certification: ISO9001:2015
Minimum Order Quantity: 1 Unit
Price: Negotiable
Packaging Details: FR or Bulk Ship
Delivery Time: 45 working days
Payment Terms: T/T, L/C
Supply Ability: 120 units per year
Max.Operating Width: 15m
Maximum Load-bearing Capacity of The Auxiliary Arm: 2000Kg
Total Weight: 29t
Minimum Turning Radius: Inner 3.0/Outer 7.5
Dual Power: Diesel & Electric
Support and Services:
Our Product Technical Support team for the Arch Installation
Trolley product is dedicated to assisting you with any issues or
questions you may have regarding the installation, maintenance, or
use of the product. Our experts are available to provide guidance
and troubleshooting to ensure that you have a positive experience
with our product.
In addition to technical support, we also offer a range of services
to enhance your experience with the Arch Installation Trolley.
These services may include product training, maintenance programs,
and on-site assistance to address any specific needs or
requirements you may have.
Packing and Shipping:
Product Packaging:
The Arch Installation Trolley will be carefully packaged in a
sturdy box to ensure it arrives safely to you. The packaging will
include protective materials to prevent any damage during transit.
Shipping:
Once your order is confirmed, our team will process it promptly.
The Arch Installation Trolley will be shipped using a reliable
courier service to deliver it to your doorstep in a timely manner.
You will receive a tracking number to monitor the shipment status.
FAQ:
Q: What is the brand name of the Arch Installation Trolley?
A: The brand name is POTENTIAL / POTENCY.
Q: What is the model number of the Arch Installation Trolley?
A: The model number is KGM12200SG.
Q: Where is the Arch Installation Trolley manufactured?
A: The Arch Installation Trolley is made in CHINA.
Q: What certification does the Arch Installation Trolley have?
A: The Arch Installation Trolley is certified with ISO9001:2015.
Q: What are the payment terms accepted for purchasing the Arch
Installation Trolley?
A: The accepted payment terms are T/T (Telegraphic Transfer) and
L/C (Letter of Credit).
