--- product_id: 240185209 title: "4M 403427 Mega Hydraulic Arm, Multi" brand: "4m" price: "266 zł" currency: PLN in_stock: true reviews_count: 13 category: "4 M" url: https://www.desertcart.pl/products/240185209-4m-403427-mega-hydraulic-arm-multi store_origin: PL region: Poland --- # Water-powered hydraulic system No batteries, hands-on assembly Multi-axis robotic arm design 4M 403427 Mega Hydraulic Arm, Multi **Brand:** 4m **Price:** 266 zł **Availability:** ✅ In Stock ## Summary > 🤖💧 Master hydraulics, build your future! ## Quick Answers - **What is this?** 4M 403427 Mega Hydraulic Arm, Multi by 4m - **How much does it cost?** 266 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/240185209-4m-403427-mega-hydraulic-arm-multi) ## Best For - 4m enthusiasts ## Why This Product - Trusted 4m brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Multi-Axis Movement:** Control every joint with precision for a fully articulated robotic arm experience. - • **Interactive Assembly:** Build it yourself and gain a deeper understanding of force and mechanics—ideal for curious minds. - • **STEM Learning Made Fun:** Perfect for ages 8+, it’s an engaging way to master hydraulic principles and engineering basics. - • **Eco-Friendly Engineering:** Powered by water, this arm combines sustainability with hands-on science exploration. - • **Hydraulic Power Unleashed:** Experience real-world physics with water-driven mechanics—no batteries needed. ## Overview The 4M 403427 Mega Hydraulic Arm is a water-powered, multi-axis robotic arm kit designed for children 8 and up. It teaches hydraulic principles through hands-on assembly and operation without batteries, promoting STEM learning and eco-friendly engineering. With precise controls and durable components, it offers an interactive educational experience that blends science, technology, and fun. ## Description Product Description Discover the amazing science behind hydraulic power. Water is all you need to power this multi axis robot. Suitable for children aged 8+, no batteries required. Directions 1. Remove the Mega Hydraulic Arm from its packaging. 2. Fill the water reservoir. 3. Power on the arm using the provided switch. 4. Manipulate the arm's movements using the hydraulic controls. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Safety Warning Not suitable for children under 3, adult supervision required See more Review: Good for teaching children about how hydraulic systems work - I bought this to use as part of a lesson in Technology and Design, my granddaughter assembled it as per the instructions. Building it helped her to understand about “force”. She used food dye in three of the syringes leaving the forth one with clear fluid in it. This helped her to understand which lever moved which part of the grab. She found the instructions quite easy to follow, the only down side was that the tubing kept popping off one of the syringes causing the model to have to be taken apart again but eventually resolved the problem by using slightly less water in the syringe. Good product. Review: Think support - Great toy. I was very pleased with this kit. My son spent hours playing with this set once assembled. ## Features - From the range of Kids Labs Steam Range, introducing the Mega Hydraulic Arm - Discover the amazing science behind hydraulic power - Water is all you need to power this multi-axis roobt - The fascinating physical world is wide open for exploration - Suitable for children ages 8+ , no batteries are required ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B085NK24QK | | Age Range Description | 96 | | Battery Description | No batteries required | | Best Sellers Rank | 66,966 in Toys & Games ( See Top 100 in Toys & Games ) 800 in Educational Science Kits | | Brand Name | 4M | | Country Of Origin | China | | Customer Reviews | 4.3 4.3 out of 5 stars (103) | | Educational Objective | Teach hydraulic technology principles | | Included Components | Syringe Cover, Slider Top, Syringe Hinge, Syringe Holder, Needle Cap x6, Plunger Cap x7, Handle Cap x4, Base Plate, Claw Frame, Rotating Frame, Top Arm Frame, Rotating Base, Syringe Barrel x 8, Syringe Plunger x 8, Claw Pads. Long Tube, Medum Tjube x 2, Short Tube, Adheshive Tab, Small Screw x 11, Flat Top Screw x 2. Also required but not included: A small crosshead screwdriver and a used, cleaned… | | Is Assembly Required | No | | Item Dimensions | 37.7 x 28.3 x 6.5 centimetres | | Item Type Name | Mega Hydraulic Arm | | Item Weight | 0.39 Kilograms | | Language | English | | Manufacturer | 4M | | Manufacturer Part Number | 00-03427 | | Manufacturer Warranty Description | 6 months | | Material Type | Water | | Maximum Age Recommendation | 168.0 | | Minimum Age Recommendation | 96 | | Model Number | 00-03427 | | Set Name | Kids Labs Steam Series | | Size | 28.57 x 37.50 x 6.99 cm | | Sub Brand | 4M | | Theme | Robotics | | Unit Count | 1.0 Count | ## Product Details - **Age range (description):** 96 - **Brand:** 4M - **Item dimensions L x W x H:** 37.7 x 28.3 x 6.5 centimetres - **Size:** 28.57 x 37.50 x 6.99 cm - **Theme:** Robotics ## Images ![4M 403427 Mega Hydraulic Arm, Multi - Image 1](https://m.media-amazon.com/images/I/81x6+lPsZ6L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good for teaching children about how hydraulic systems work *by M***T on 27 March 2022* I bought this to use as part of a lesson in Technology and Design, my granddaughter assembled it as per the instructions. Building it helped her to understand about “force”. She used food dye in three of the syringes leaving the forth one with clear fluid in it. This helped her to understand which lever moved which part of the grab. She found the instructions quite easy to follow, the only down side was that the tubing kept popping off one of the syringes causing the model to have to be taken apart again but eventually resolved the problem by using slightly less water in the syringe. Good product. ### ⭐⭐⭐⭐⭐ Think support *by M***Y on 24 December 2024* Great toy. I was very pleased with this kit. My son spent hours playing with this set once assembled. ### ⭐⭐⭐⭐ A Fine Introduction to Engineering *by P***M on 11 April 2023* A good display of hydraulics in action. The syringes will lose their ability to hold the vacuum over time with excessive use, and it can be difficult to bleed the air out which means the arms don’t function as well as they could but as an introductory model I can’t fault it. Food colouring for each function recommended. Well made and fair value for money. A happy son. ## Frequently Bought Together - 4M 403427 Mega Hydraulic Arm, Multi - 4M KidzLabs Anti Gravity Magnetic Levitation Kit | Make a Pencil Float in Mid Air | Engineer Personal Transportation | Gravity Defying Sculptures | Motion Machine & More | Kids 8+ - 4M KidzLabs Bubble Science Kit, Blow a Giant Bubble & More, Learn the Science of Bubbles, Bubble Tricks, STEM Learning Kit for Ages 5+ --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/240185209-4m-403427-mega-hydraulic-arm-multi](https://www.desertcart.pl/products/240185209-4m-403427-mega-hydraulic-arm-multi) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-22*