![[Wheelchair King] Proudly introducing the XSTO Wheelchair King certified version WC CT420C, a stair climbing vehicle with a blue hue and automatic gravity balancing function. This upgraded model comes with tracks and a joystick that can support loads of up to 420 kg and can even operate the spiral staircase via remote control. .](https://www.wheelchair.com.hk/wp-content/uploads/2025/04/Thumbnail-WC-CT420C-501x501.webp "[Wheelchair King] Proudly introducing the XSTO Wheelchair King certified version WC CT420C, a stair climbing vehicle with a blue hue and automatic gravity balancing function. This upgraded model comes with tracks and a joystick that can support loads of up to 420 kg and can even operate the spiral staircase via remote control. .")
XSTO Wheelchair King Certified Edition WC CT420C [Crawler Type – Automatic Gravity Balance Heavy-Duty Cargo Special Stair Climber (Upgraded Version)] (For spiral staircases. Wired remote control operation. Maximum load capacity 420kg)
Non-marking and anti-slip tracks easily solve the problem of carrying goods up and down stairs
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![[Wheelchair King] Proudly introducing the XSTO Wheelchair King certified version WC CT420C, a stair climbing vehicle with a blue hue and automatic gravity balancing function. This upgraded model comes with tracks and a joystick that can support loads of up to 420 kg and can even operate the spiral staircase via remote control. .](https://www.wheelchair.com.hk/wp-content/uploads/2025/04/Thumbnail-WC-CT420C.webp)
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The WC CT420C features wired joystick control. With large load capacity, easy-to-operate functions and non-marking anti-slip tracks, it solves the problem of carrying heavy objects up and down stairs.
As a new heavy-load tracked stair climber, the self-developed controller and remote control module can switch the operating mode with one click to adapt to various terrains.
Application scope
Suitable for carrying heavy objects such as precision instruments, large electronic equipment, large household appliances and furniture, vending machines, etc.
![【Wheelchair King】 Proudly introducing the XSTO Wheelchair King certified version WC CT420C [Crawler Type – Automatic Gravity Balance Heavy-Duty Cargo Special Stair Climber (Upgraded Version)], this blue and white stair climbing mobile device has joystick control, crawler tracks, support structure and seating area. Designed for seamless functionality and the convenience of a spiral staircase. .](https://www.wheelchair.com.hk/wp-content/uploads/2025/04/CT420C-2.webp)
1) Multi-angle adjustable armrests
2) Retractable and adjustable armrests
3) Vertical beam adjustment rope
4) Carrier board
5) Rail protection cover
6) Remote controller
7) Strip fixing beam
8) Removable lithium battery
9) Anti-slip and non-marking running track
![[Wheelchair King] A lady in a blue shirt skillfully manipulates the upgraded XSTO Wheelchair King certified version WC CT420C stair climbing machine and effortlessly carries a large copy machine down the stairs. This heavy-duty device comes with a wired remote control and a gravity counterbalance that can easily handle loads of up to 420 kg. .](https://www.wheelchair.com.hk/wp-content/uploads/2025/04/CT420C-5.webp)
![[Wheelchair King] A person is operating the XSTO Wheelchair King certified version WC CT420C, an electric stair climbing trolley designed for heavy-duty tasks. This upgraded model can easily carry a heavy box down the stairs and can easily carry boxes weighing up to 420 kg via a wired remote control. .](https://www.wheelchair.com.hk/wp-content/uploads/2025/04/CT420C-4.webp)
| Item | WC CT420C |
|---|---|
| Maximum load | 420kg |
| product weight | 94kg |
| Battery capacity | 1400~1600 steps (78~100 floors) |
| slow | 14.6 steps/minute |
| fast | 15.4 steps/minute |
| Battery parameters | 25.2V 17Ah |
| stair height | Height < 210mm |
| Minimum platform size | 1500x1500mm (turning platform) |
| Protection level | IP54 |
| noise | |
| Charging time | 4.5 hours |
| Size | 1130~1620x614x1030mm |
Optional device
Electric Mini Lift
Printer tooling
Official professional certification: Wheelchair KingPass the original factory authorization assessment to ensure that the operation guidance is safe and reliable.
Authorized professional training:Factory approvedWheelchair KingProfessional training, so you have no worries.
Emergency Response: Wheelchair KingRich experience in dealing with emergencies and ensuring user safety.
![[Wheelchair King] A Dual Climber [2-in-1 wheelchair stair climber] is placed near the marked path at the bottom of the stairs, highlighting the challenges of accessibility. .](https://www.wheelchair.com.hk/wp-content/uploads/2025/02/718e3e7c-7ed7-4039-94db-a3d3e657c637.webp)
We simulate tests in real stair environments and verify the performance of stair climbers to ensure they are perfectly matched to different usage scenarios. From home to commercial use, rigorous verification gives you peace of mind!
All pictures and data are for reference only, and the actual product shall prevail.
The following is a sharing of customers’ personal experiences:
A customer had no knowledge of stair climbing machines.Bought an electric stair climbing machine online. Unfortunately, a serious accident occurred. When the customer was operating the stair climber to help his mother go down the stairs, the machine suddenly became uncontrollable, causing both the person and the machine to roll down the stairs.
As a result of the accident, the elderly man suffered multiple fractures and required multiple surgeries and a long time to recover.
So when we choose an electric stair lift, we must consider the hardware andsoftware factors, andwhetherLicensed goods,Authorized agentAndtraining staff, you can buy with confidence.
Wheelchair King Exclusive Agency Authorization Letter
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![【Wheelchair King】 A black stair climbing trolley with red wheels and a blue panel with a "MAX 200kg" label on it. Equipped with XSTO Wheelchair King certified version WC CT200S [Crawler-type - automatic gravity-balanced heavy-duty cargo-specific stair climber] for heavy-duty stair transportation. .](https://www.wheelchair.com.hk/wp-content/uploads/2025/05/Thumbnail-WC-CT200S-256x256.webp)
![[Wheelchair King] XSTO Wheelchair King Certified Edition WC CT310 [Crawler Type - Automatic Gravity Balance] is an electric stair climbing trolley with pedals and foldable platform, featuring automatic gravity balance, remote control operation and heavy load capacity of up to 310 kg. .](https://www.wheelchair.com.hk/wp-content/uploads/2025/05/Thumbnail-WC-CT310-256x256.webp)
![XSTO WC ET400W3 [Heavy-duty electric trolley] (Easily load and unload heavy objects by one person • Quickly move on flat ground/slopes • Automatically lock when going up and down slopes • Maximum load capacity 400kg)](https://www.wheelchair.com.hk/wp-content/uploads/2025/05/Thumbnail-WC-ET400W3-256x256.webp)
![[Wheelchair King] Two blue and silver wheeled folding trolleys, equipped with the XSTO Wheelchair King certified version WC ZW7200GC [Support Bar Type - Aluminum Alloy Heavy Duty Cargo Special Stair Climber], which can provide heavy-duty lifting services with MAX 200kg icon for safe and efficient transportation. .](https://www.wheelchair.com.hk/wp-content/uploads/2025/05/Thumbnail-WC-ZW7200GC-256x256.webp)
![[Wheelchair King] XSTO WC CT420S stair climbing trolley has mechanical pedals and handles, and has a maximum load-bearing capacity of 420 kg. Designed for heavy-duty stair transport, this sturdy unit comes with a wired remote control for ease of use. .](https://www.wheelchair.com.hk/wp-content/uploads/2025/03/Thumbnail-WCCT420-256x256.webp)
![[Wheelchair King] XSTO Wheelchair King Certified Edition WC SCL170AC [Support Bar Type - 2 in 1 Medium-sized Cargo Climbing Stacker (Upgraded Version)] is an electric stair climbing trolley with a lifting platform and large wheels. It supports loads of up to 170 kg, offers height adjustment and no-lift convenience for easy transport.](https://www.wheelchair.com.hk/wp-content/uploads/2025/04/Thumbnail-WC-SCL170AC-256x256.webp)
![[Wheelchair King] Folding trolley with blue decoration and black wheels, with XSTO Wheelchair King certified version WC CT150PB [Crawler-Aluminum Alloy Medium-Duty Cargo Special Stair Climber] label, with a maximum load capacity of 150 kg. Smooth mode switching for stairs or flat surfaces; easy operation. .](https://www.wheelchair.com.hk/wp-content/uploads/2025/04/Thumbnail-WC-CT150PB-256x256.webp)
[Wheelchair King] Barrier-free product showroom
Wheelchair King also provides door-to-door on-site demonstrations
Our company can assist institutions to apply for the Elderly Fund
Wheelchair King has ten unique stair machines with complete functions.
Flexible to adapt to various environments and needs.
Crawler stair machine
Wheelchair-adjustable crawler stair climber
Electric escape chair
Entry-level crawler
Manual escape chair
High-end pole-type stair climber
Entry-level pole stair climber
2 in 1 stair climber
170kg cargo stair climber
400kg cargo stair climber
We simulate tests in real stair environments and verify the performance of stair climbers to ensure they are perfectly matched to different usage scenarios. From home to commercial use, rigorous verification gives you peace of mind!
At Wheelchair King, what you buy is not just a product, but the best solution customized for you by a professional medical team.The team behind us includes occupational therapists, nurses, nutritionists, psychologists, domestic help companies and other professionals. If you need to seek related professional services, you are welcome to contact us.
