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7-9 years old
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Programmable robots, Science Experiment Group, and DIY
byjarda scientific assembly experiment three-in-one STEM hydraulic mechanical arm
Regular price
$949.00
Sale price
$679.00
折扣28%
Details →
Skills Developed:
Fine motor skills
, Mathematical Logic
and Spatial geometry
- Three-in-one hydraulic robotic arm
- No batteries or motor required, powered by water
- Develop logical thinking skills and explore scientific principles
Sold 5 in
8 hours
15 people viewing
byjarda scientific assembly experiment three-in-one STEM hydraulic mechanical arm
Sale price
$679.00
Regular price
$949.00
Explore the Mysteries of Science: byjarda 3-in-1 STEM Hydraulic Robotic Arm — A Perfect Blend of Physical Power and Engineering Aesthetics
In today's rapidly advancing technological era, it is crucial for children to be exposed to STEM (Science, Technology, Engineering, Mathematics) education from an early age. This "Science Assembly Experiment 3-in-1 Hydraulic Robotic Arm" launched by byjarda is not just a toy, but a bridge to the world of physics. It completely discards traditional batteries and motors, purely utilizing the principle of hydraulic transmission, allowing children to personally experience the magical charm of Pascal's Law while assembling it.
🔧 Assembly Difficulty: High (5/5 — Extremely challenging, suitable for children aged 8 and above with adult supervision, for a deep parent-child co-learning experience)
🌟 Core Product Features: No Electricity, Pure Water Driven
The biggest highlight of this robotic arm is its environmental friendliness and educational value. Through the five precise control levers at the back of the arm, children can manually apply pressure, converting liquid pressure into powerful mechanical force. This intuitive control allows children to deeply understand the process of energy conversion, far more profoundly than simply watching video tutorials.
🛠️ 3-in-1 Functionality for Various Challenges
To increase playability, this robotic arm is designed with three interchangeable end effectors, allowing children to modify it according to different "task requirements":
- Gripper Clamp: Simulates human fingers to precisely pick up small objects.
- Grapple Clamp: Suitable for simulating excavation or handling loose materials.
- Suction Cup: Utilizes the principle of atmospheric pressure to attach to flat-surfaced objects (maximum load approximately 100g).
📐 Six-Axis Joint Design: Flexibility Comparable to Industrial Robots
This robotic arm offers a high degree of freedom, capable of complex movements such as rotation, lifting, lowering, and bending. Here are its precise range of motion specifications:
| Joint Part | Range of Motion / Specification |
|---|---|
| Base Rotation | 270° wide-angle rotation |
| Wrist Rotation | 180° flip |
| Wrist Movement | 90° vertical swing |
| Elbow Movement | 40° extension/retraction |
| Shoulder Movement | 45° lift/lower |
| Gripper Width | Max 48 mm |
| Max Load Capacity | Approx. 100 grams (g) |
🧠 Incorporates International STEAM Education Philosophy
This is not just a simple assembly; it's a training in logical thinking. Children need to follow detailed instructions (or refer to tutorial videos) to assemble hundreds of parts step by step. This effectively cultivates:
- Problem-solving skills: Learning how to debug and adjust when facing complex structures.
- Spatial imagination: Understanding the relationship between 3D structures and mechanical linkage.
- Focus and patience: The 5-star difficulty challenge is the best way to hone mental fortitude.
📋 Product Specifications and Packaging Information
| Item | Specification / Quantity |
|---|---|
| Recommended Age | 8 years or older (parental supervision recommended) |
| Main Material | Safe and eco-friendly ABS plastic |
| Robotic Arm Base Size | Approx. 28cm (excluding arm length) |
| Package Box Size | 40.5 x 10.5 x 30 cm |
| Contents | Assembly parts boards, hydraulic hoses, suction cups, stickers, instruction manual |
| Origin | China |
⚠️ Essential Assembly Tools (to be prepared by yourself)
To ensure a smooth assembly process and a aesthetically pleasing finished product, it is recommended to prepare the following tools. Please note, when removing parts, always use tools for cutting to avoid burrs that may cause mechanical structures to jam.
| Essential Tool | Purpose Description |
|---|---|
| Diagonal pliers | Precisely cut parts, avoiding burrs |
| Phillips screwdriver | Secure mechanical structure screws |
| Scissors | Cut hydraulic hoses |
| Paper towel | Clean up excess water or lubricant |
| Marker pen | Mark part or hose length |
| Tape measure or ruler | Measure hose length |
| Water cup | Provide water for the hydraulic system |
Customer Notice & Disclaimer
- Product Ingredients & Specifications: All product ingredients, dimensions, weight, and specifications are subject to the actual product. Product effects (e.g., intellectual development, stress relief, etc.) vary from person to person.
- Origin & Packaging: This product may be "Made in China," and the packaging or manual may contain simplified Chinese. Please consider this before purchasing if it is a concern.
- Size Tolerance: Due to all dimensions being measured manually, there may be a small reasonable tolerance (+/- 1-3cm). Please refer to the actual product for any minor discrepancies.
- Color Difference Explanation: All images are taken from the actual product. Due to shooting light, monitor resolution, and individual perception of colors, there may be a slight color difference from the actual product. Please refer to the actual product.
- Safety Warning: The product may contain small parts and is not suitable for children under 3 years old. Please use under adult supervision.
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Free Shipping over $400
Free door-to-door delivery on orders over HK$400 (excluding residential/remote areas).
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Premium Gift Wrapping & Card Writing
Premium Gift Wrapping Service
Special gifts deserve exquisite packaging services.
We provide a full range of toy gift wrapping services, adding a beautiful touch and a handwritten card to your carefully selected STEM toys.
Warm wishes, beautifully presented. Make important moments full of smiles and make children even happier!
Exquisite Gift Wrapping
Using high-quality wrapping paper and ribbons, wrapped by hand to make the unboxing moment full of ritual.
Handwritten Greeting Card
We write your blessings for you, turning warm wishes into words delivered with the gift.
Billing for Multiple Items Instruction
This service is charged per 'toy item count'. Please add the quantity corresponding to the number of items you need wrapped.
We will provide individual packaging for each selected toy.
💡 Example: If you buy 3 toys and need all of them wrapped, please set the quantity to 3.
Shipping Policy & Delivery Info
Shipping & Delivery
Shipping Fees & Free Shipping
- Enjoy Free Delivery on orders over $400.
- Free shipping coverage: Single delivery location, including residential/commercial addresses, SF Stores, and EF Lockers.
- For orders under $400, a shipping & handling fee of $60 will be charged.
- SF Express Network:
Remote Area Surcharge
- An extra $10 fee applies to the following areas:
Sai Kung, Clear Water Bay, Shek O, Stanley, Discovery Bay, Ma Wan, Cheung Chau, Lamma Island, Peng Chau, South Lantau (including Tai O, Tong Fuk, Cheung Sha, Mui Wo, Pui O, etc.).
- Other remote area service & surcharge details: Click here for details.
- Note: Additional service fees may apply for remote areas. Please refer to SF Remote Area Table.
Delivery Time & Schedule
- General Delivery Service: Mon-Fri only (Hong Kong).
- Processing Time: 2-4 days after ordering.
(Cut-off time: Mon-Fri 16:00) - Transit Time: Approx. 5-7 days via courier.
- Actual delivery time depends on stock availability. Incorrect information may delay delivery.
Delivery Scope & Addresses
- Each order can only be delivered to one address. Please place separate orders for multiple locations.
- PO Boxes are not accepted as delivery addresses.
- No Delivery: Outlying Islands (except Airport, Ma Wan, Discovery Bay, and Tung Chung) and any restricted areas.
- Please contact Kidrise immediately if you need to change the address.
Tracking & Receipt
- We will provide a Tracking No. after the item is dispatched.
- To change the address after dispatch, please contact the courier directly. Extra fees are borne by the customer.
- Orders may be cancelled without refund if delivery fails multiple times due to personal reasons.
- Door-to-door delivery does not include moving items inside the residence. Kidrise is not responsible for any damage during moving.
Severe Weather Arrangements
- Delivery will be suspended when Typhoon Signal No. 8 or higher, or Red/Black Rainstorm Warnings are hoisted.
- Delivery will also be suspended if weather conditions are deemed unsafe by the courier.
- Kidrise will contact you to reschedule the delivery.
Educational STEM Toy Birthday Gift Guide
Struggling to find the perfect birthday gift? Kidrise has selected a variety of popular birthday gifts for children!
We feature Montessori toys for ages 0-3, as well as STEM toys for ages 3+,
covering the four major fields of Science, Technology, Engineering, and Mathematics.
Combined with our exclusive discounts, let's make it a memorable birthday for your little one!
How to Choose Age-Appropriate Toys?
Struggling to find the right toy or birthday gift? Kidrise has the perfect guide for you!
Toys are essential partners for children to learn while playing. Regardless of the type, they hold educational value.
However, choosing toys that do not match a child's age may lead to disinterest or safety concerns.
Kidrise Expert Advice:
Match the child's developmental age (intelligence, motor skills, and physical ability). Choosing 'slightly challenging' toys can better stimulate a child's potential.
Match the child's developmental age (intelligence, motor skills, and physical ability). Choosing 'slightly challenging' toys can better stimulate a child's potential.
Toy Age Guide & Categories
0-3 Yrs
Early Learning & Montessori
View Collection3-6 Yrs
STEM Educational Toys
View Collection6-11 Yrs
STEM Science Experiments
View Collection11+ Yrs
Advanced STEM Logic Toys
View CollectionReturn & Exchange Policy
Returns & Exchanges
Non-Exchangeable Items
- Bought by mistake / Changed mind after delivery.
- Product damaged by human error.
- Product has been opened or used (e.g., plastic wrap or box seal removed).
- Packaging is damaged, destroyed, or incomplete.
- Color difference due to lighting or screen settings (actual product prevails).
- Loss or damage caused by instructing courier to leave at door/management office.
Cancellation & Handling Fees
For order cancellations and refunds after payment, the following handling fees will be deducted:
Credit Card / AlipayHK / WeChat Pay
Deduct 5% or $30 (whichever is higher)
PayMe / Octopus / FPS / Bank Transfer
Deduct 3% or $20 (whichever is higher)
* We do not offer refunds without cause and reserve the right to refuse unreasonable requests.
Contact for Returns
Please prepare your order number and receipt, then contact us:
📞 Hotline: +852 6672 1884
📧 Email: contact@kidrise.com.hk
* If the item or quantity does not match the order, please contact us immediately on the day of delivery.
Return Rules & Process
- Timing: For quality issues, request an exchange within 7 days of receipt. Late requests will not be accepted.
- Return Deadline: Return the item to the service center within 3 days after the request.
- Proof: Must present the order number and original valid receipt.
- Limit: Only one exchange per order is allowed.
- Completeness: If operation is affected, return with full packaging and accessories; if only part is affected, only that part will be replaced.
- Shipping Fee: All shipping costs incurred for returns/exchanges are borne by the customer.
- Processing Time: Returns take 1-3 weeks (from the date of receipt).
- Refund Method: Refunds will be made to the original payment method (e.g., credit card), subject to bank processing time.
- Disclaimer: Kidrise is not responsible for damage after delivery. We are not liable for delivery failure/delay due to incorrect customer data.
- Returns due to size mismatch or change of mind are not accepted.
Other Terms
- We reserve the right to refuse any unreasonable return or exchange requests.
- Kidrise reserves the right to amend these terms without prior notice.
- In case of any dispute, Kidrise reserves the right of final decision.
Reminder:
Please read the product description and dimensions carefully before purchasing. Feel free to contact CS if you have questions.
Please read the product description and dimensions carefully before purchasing. Feel free to contact CS if you have questions.