Hydraulic Arm Excavator Wooden Construction Kit DIY 28 x 22 x 14 cm Powered by Syringes Scientific STEM Toy for Ages 14 and Up
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The wooden construction kit of the hydraulic arm excavator is an excellent choice for anyone who enjoys creating with their own hands and wants to understand how real machines work. The model operates thanks to hydraulic power using syringes connected by hoses. Simply fill the syringes with water and by compressing them, you can raise and lower the arm and the excavator's scoop. The assembled model measures 28 x 22 x 14 cm, making it a great display piece on a work desk or in a child's room. The kit requires no batteries or electricity and is suitable for older children, students, and adult technology enthusiasts.
Assembling the individual wooden parts develops fine motor skills, patience, and technical thinking. Once the construction is complete, the most fun part begins – operating it. You will see for yourself how the pressure of the liquid in a closed system can transfer force and motion. This is the principle behind real excavators, cranes, and lifting platforms. The kit thus combines play with practical physics education and is suitable for school projects, clubs, and home science experiments. The finished model also serves as a unique decoration made of natural wood. You can embark on the construction alone or together with parents, friends, or classmates. Those who play with the model longer can experiment with how the force and speed of movement change with different amounts of water in the syringes, and observe what happens when air enters the hoses.
- Type – wooden construction kit of a hydraulic arm excavator for self-assembly
- Power – hydraulic using syringes and hoses, without electricity or batteries
- Control – the arm and scoop are raised and lowered by compressing the syringes
- Material – natural wood with plastic syringes and transparent hoses
- Dimensions of the assembled model – height 28 cm, base length 22 cm, base width 14 cm
- Dimensions of the packaging – 25 x 18 x 4 cm
- Weight – 140 g
- Recommended age – from 14 years
- Usage – STEM education, school projects, technical clubs, home experiments and crafting
- Contents of the package – 1 hydraulic arm excavator kit (wooden parts, syringes, and hoses)
The hydraulic excavator kit is a fantastic gift for young builders who want to understand what lies inside construction machines. It combines manual dexterity with logical thinking and demonstrates the laws of physics in practice in a fun way. Since it operates without batteries or electricity, you can use it anytime and anywhere. The natural wood model looks aesthetically pleasing and can adorn a shelf or work desk once assembled. It is an ideal choice as a educational STEM toy for both home and school use. Perfect for anyone who loves technology, science, and creating their own projects.
Delivery
Delivery to address€1.59
Estimated delivery: 3 – 16 November
You only pay for delivery once per order, whatever its size.
We will email you the tracking number as soon as the seller makes it available.
Delivery guarantee: if your parcel does not arrive within 75 days of payment, we will refund your money or the goods will be sent to you again – whichever you choose.
Delivery is only possible to addresses in Ireland.
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Returns and Exchanges
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Returns30 days to return without giving a reason
Withdrawal period30 days from receipt of the goods
Deadline to send the goods backWithin 14 days of withdrawing from the contract
Return shipping costsYou pay the postage for sending the goods back to Spain. It is an international parcel, so it usually costs more than a parcel sent within Ireland. We charge no other fee.
RefundWithin 14 days of your notice of withdrawal, using the same payment method you used for the purchase. If you return the whole order, we will also refund the delivery cost.
Crediting of the amountUsually 2–10 working days, depending on the payment method
Product conditionYou may unpack the goods and try them as you would in a shop, and you can return them even without the original packaging
Returns addressQX-BOX AEMALL RETURN
Rotonda Rene Descartes, Parcela 101 – Nave 3
28070 Alcala de Henares, Madrid
Spain
How do I return goods?
- Email us at info@lunzo.ie with your order number and the items you are returning.
- Pack the goods and send them by post to the returns address in Spain.
- Send us the proof of dispatch with the tracking number – this lets us refund you without waiting for the parcel to arrive.
Faulty goodsUp to 6 years to claim for faulty goods
Did the goods arrive damaged, do they not work, is something missing from the parcel or do they not match the description? We will sort it out.
Period for claiming a faultUp to six years from delivery of the goods
RefundWithout undue delay once the claim has been settled, using the same payment method you used for the purchase
How does it work?
- Email us at info@lunzo.ie with your order number and a description of the problem, and attach photographs or a video.
- We will assess it and suggest a solution. Photographs are usually enough – please do not send the goods back until you have received instructions from us.
- We will settle your claim within 30 days at the latest – with a new item, a price reduction or a refund.
If the goods need to be sent back, we will refund the postage for a valid claim (just provide the receipt).
ExchangesA different size, colour or variant
Write to us within 30 days of receipt at info@lunzo.ie with your order number and the variant you are interested in. We usually reply within 24 hours.
If the variant is available, we will send you instructions for the exchange. You pay the cost of sending the original item back; the new variant will be sent to you at no further charge.
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Payment is made through a secure payment gateway and your card details are never stored anywhere on our side. We do not charge a fee for any payment method.
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About the seller
This product is sold and shipped by an external seller. LUNZO guarantees you a safe purchase: online payments go through a secure payment gateway, and you handle your order, returns and complaints with us.
The following information has been provided by the product seller, who is responsible for its accuracy. The seller acts as a trader.
Seller:
Gansu Constar Technology Group Co., Ltd.
Address: No.10, Chuangxin South Road, Baiyun District, Baiyun, Gansu, China
E-mail: ksdjt@foxmail.com
Telephone: +86 156 9392 3686
Manufacturer:
Gansu Constar Technology Group Co., Ltd.
Address: No.10, Chuangxin South Road, Baiyun District, Baiyun, Gansu, China
E-mail: ksdjt@foxmail.com
Telephone: +86 156 9392 3686
EU responsible person:
BioDomi GmbH
Address: Schokoladenring 13, 65795 Hattersheim am Main, Germany
E-mail: arcontact@biodomieurope.de
Telephone: +49 178 5749814
All products from this seller