XSTO Wheelchair King Certified Edition WC CT420SC [Crawler-type – Automatic gravity-balanced heavy-duty cargo-specific stair climber (upgraded version)] (for spiral staircases. Smart support wheels. Wired remote control operation. Maximum load capacity 420kg)
Non-marking anti-skid tracks, final auxiliary support wheels
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Products
Heavy-duty crawler stair climber, WC CT420SC adopts wired handlebar control. It has the advantages of large load capacity and easy operation, and is equipped with smart support wheels to solve the problem of the "last step" when going 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
Used for carrying heavy objects such as precision instruments, large electronic equipment, large household appliances and furniture, vending machines, etc.
![[Wheelchair King] XSTO Wheelchair King Certified Edition WC CT420SC is a stair climbing trolley with components such as tracks, wheels, handles and controllers. It is designed for heavy loads (up to 420 kg) and can handle spiral and narrow staircases with ease. Comes with a wired remote control to ensure safety and ease of use. .](https://www.wheelchair.com.hk/wp-content/uploads/2025/04/1120%E4%BA%A7%E5%93%81%E7%BB%86%E8%8A%82%E5%B8%A6%E5%BA%8F%E5%8F%B7-2.webp)
1) Remote controller
2) Multi-angle adjustable armrests
3) Vertical beam adjustment rope
4) Tie straps to secure the beam
5) Removable battery
6) Anti-slip and non-marking tracks
7) Carrier Plate
8) Universal wheels
9) Final auxiliary support wheel
![[Wheelchair King] XSTO Wheelchair King Certified Edition WC CT420SC [Crawler-type Automatic Gravity-balanced Heavy-duty Cargo Special Stair Climber (Upgraded Version)] is a blue robotic stair climbing machine with pedals, control panel and wheels. The wired remote control can be easily held in one hand and can handle up to 420 kg on narrow or spiral staircases.](https://www.wheelchair.com.hk/wp-content/uploads/2025/04/1120%E4%BA%A7%E5%93%81%E7%BB%86%E8%8A%82.webp)
![[Wheelchair King] A man in a blue shirt skillfully operates an XSTO Wheelchair King certified version WC CT420SC, using its automatic gravity balance and heavy-duty design to easily and accurately transport large appliances safely down the outdoor stairs. .](https://www.wheelchair.com.hk/wp-content/uploads/2025/04/CT420SC-8.webp)
![[Wheelchair King] A person wearing a safety vest and a hard hat operates the XSTO Wheelchair King certified version WC CT420SC stair climbing vehicle and skillfully maneuvers heavy objects to climb the stairs. This upgraded version features a remote-controlled gravity-balanced design that handles spirals and tight corners with ease. .](https://www.wheelchair.com.hk/wp-content/uploads/2025/04/CT420SC%E7%88%AC%E6%A5%BC%E6%9C%BA%E6%A1%88%E4%BE%8B.webp)
![[Wheelchair King] A worker skillfully operates the XSTO WC CT420SC electric stair climbing trolley to easily transport large industrial valves down the stairs, even through narrow corners and spiral staircases. This upgraded model is designed for heavy duty use and ensures seamless operation via remote control. .](https://www.wheelchair.com.hk/wp-content/uploads/2025/04/CT420SC%E7%88%AC%E6%A5%BC%E6%9C%BA%E6%A1%88%E4%BE%8B2.webp)
| Item | WC CT420SC |
|---|---|
| Maximum load | 420kg |
| product weight | 107kg |
| 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 | 1150~1640x614x1170mm |
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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XSTO Wheelchair King Certified Edition WC CT310 [Crawler Type – Automatic Gravity Balance Heavy-Duty Cargo Special Stair Climber] (Can be operated in narrow spaces. Automatically balance the center of gravity of the cargo. Remote line controller operation. Maximum load capacity 310kg)
Read more
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![[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] 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-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】 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)
[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.
