Wholesale STEM Set, 4 in 1 Hydraulic Machinery Kit – Toys Wholesale Distributors Supply

Wholesale DIY hydraulic machinery 4-in-1 STEM set, excavator/manipulator/gear set/lift, battery-free, customizable coloring, develops scientific exploration & hands-on skills.

As an educational toy supplier, bulk toy procurement is supported by Chengji. Contact us now!

Specifications of DIY Mechanical Hydraulic 4-in-1 

Item No.: CJ-4399260
Package: COLOR BOX
Package Size: 23*17*6CM
Carton Size： 54*48*54CM
Q’ty/Ctn: 48/PCS
G.W./N.W.: 21/19 KG
Measurement: 0.14 CBM’/4.94 CUFT’

Certification

Features of the DIY Mechanical Hydraulic 4-in-1 CJ-4399260

  •  DIY Hydraulic Machinery 4-in-1 STEM Set – Excavator, Manipulator, Gear Set & Lift
    Build four real hydraulic machines from one kit! Explore fluid power with battery-free models that teach engineering through hands-on play.

  • No Batteries Needed – Powered by Water Pressure
    Discover the power of hydraulics! Simply add water to bring your creations to life—clean, safe, and endlessly fascinating.

  • DIY Coloring Available – Customize Your Hydraulic Models
    Paint and personalize each build! Combine creativity with engineering for a truly unique STEM experience.

  • Develops Scientific Thinking & Hands-On Skills – Perfect STEM Set Toy
    From assembling gears to testing hydraulic lifts, every step builds critical thinking, fine motor skills, and a love for mechanics.

  • Family Bonding Through Building – Learn Hydraulic Principles Together
    Collaborate on exciting engineering projects! This 4-in-1 set turns family time into a rewarding journey of discovery and shared accomplishment.

Details of the DIY Mechanical Hydraulic 4-in-1 CJ-4399260

General Customization Service

Custom toy packagingCustom Packaging
Custom toy logoCustom Logo
Custom toy colorCustom Color

Deep Customization Service

Submit a Design or Idea

Send us your drawings, sketches, references or creative concepts and we will assess the feasibility and provide a quote.
icon_step 11.Toy design

Prototyping

Prototyping We will provide you with a draft sample as soon as possible so that you can test the quality of our products and services.
icon_step 22.Prototype

Modify and Optimize Samples

We will modify the sample according to your modification suggestions until the final sample meets the requirements.
icon_step 33.Modify the sample

Mass Production

We will carry out mass production according to the confirmed samples, control the quality and deliver on time.
4.Mass production
icon_step 4

Packaging and Delivery

Packing, labeling and boxing according to customer requirements, and arrange reliable logistics transportation.
5.Deliver
icon_step 5

After-sales Service

If you encounter any problems, please feel free to contact us and we will provide perfect after-sales support.
6.After-sales service
icon_step 6

About Us

Chengji is a comprehensive toy supplier integrating manufacturing, trade and services. We have an experienced team covering design, production, quality inspection, foreign trade, shopping guide, e-commerce and other aspects, and are committed to providing efficient and convenient one-stop procurement solutions for global customers.
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Business Team – Chengji

Business Team

Shopping Guide Team – Chengji

Shopping Guide Team

E-commerce Team – Chengji

E-commerce Team

Honor Center – Chengji

Honors Center

Design Team – Chengji

Design Team

Production Workshop – Chengji

Production Workshop

Quality Inspection Laboratory – Chengji

Quality Inspection Laboratory

International Certification

Why Choose Us as Your Toy Supplier

A deep understanding of our core strengths will help you make the most valuable cooperation decision among many suppliers.
Customized Toy Capabilities 1_Excellent Design

Excellent Design

We have an experienced design team that is good at transforming customers' ideas into toy products that are market-appealing and functional.
Customized Toy Capabilities 2_Rich Product Types

Rich Product Types

We offer a wide range of products, including baby toys, educational toys, role-playing toys, etc., to meet the needs of different markets and age groups
Customized Toy Capabilities 3_Integration Capabilities

Integration Capabilities

Our strategic network of over 3,000 trusted toy manufacturers has created a strong and flexible supply chain ecosystem.
Customized Toy Capabilities 4_Manufacturing Capabilities

Manufacturing Capabilities

With advanced production equipment and efficient assembly lines, we have one-stop production capabilities from mold development, injection molding, assembly, spraying to packaging.
Customized Toy Capability 5_Quality Control

Quality Control

We strictly implement the quality inspection process, and strictly control every level from raw material procurement to finished product delivery to ensure that every toy is safe and reliable.
Customized Toy Capability 5_International Certification

International Certification

The products comply with many international toy safety standards and have passed certifications such as EN71, ASTM, CPSIA, etc.

Contact

Choose Chengji as your toy supplier. We provide high-quality toy supply support, OEM and ODM toy solutions, and efficient wholesale toy services.

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Contact

Choose Chengji as your toy supplier. We provide high-quality toy supply support, OEM and ODM toy solutions, and efficient wholesale toy services.

FAQ

Follow us here
facebook
Message

Send Us A Message

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