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FROM CHENGHAI. READY FOR YOUR MARKET.Wholesale · Private label · OEM / ODM
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STEM Set, 4 in 1 Hydraulic Machinery Kit

STEM Set, 4 in 1 Hydraulic Machinery Kit (TG4399260) is a creative activity toy for wholesale assortment planning. Listed product highlights include DIY Hydraulic Machinery 4-in-1 STEM Set, No Batteries Needed, DIY Coloring Available and Family Bonding Through Building. Compare the materials, activity steps and consumable contents for a creative-play range.

Packing & model specifications

Item No.: TG4399260
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’

Quote reference: TG4399260. Carton packing is a logistics reference; MOQ, availability and customization are confirmed per order.

DOCUMENTS YOU CAN REVIEW

Factory audits & product reports.

Review factory audit previews and product reports with a clear view of the factory, product and test scope.

Document holder: Shantou Qihangxing Intelligent Technology Co., Ltd. Product documents cover the electric water gun models listed in each report. Coverage for your chosen TG SKU, configuration and destination is confirmed separately.

Review all factory and product documents ↗

BUYER’S FIELD NOTES

Review this model before ordering

Review TG4399260 against your target sales channel, retail pack and destination market. Use the specification table and product panels together when comparing versions; confirm the final contents on the approved sample.

  • Actual activity steps and the result produced by the sample
  • Contents and quantities of tools or consumables
  • Storage, cleanup guidance and material documentation

Product features & play experience

  •  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.

Product details & configuration

STEM Set, 4 in 1 Hydraulic Machinery Kit (TG4399260) — product detail panel 1

STEM Set, 4 in 1 Hydraulic Machinery Kit (TG4399260) — product detail panel 2

STEM Set, 4 in 1 Hydraulic Machinery Kit (TG4399260) — product detail panel 3

STEM Set, 4 in 1 Hydraulic Machinery Kit (TG4399260) — product detail panel 4

STEM Set, 4 in 1 Hydraulic Machinery Kit (TG4399260) — product detail panel 5

STEM Set, 4 in 1 Hydraulic Machinery Kit (TG4399260) — product detail panel 6

STEM Set, 4 in 1 Hydraulic Machinery Kit (TG4399260) — product detail panel 7

STEM Set, 4 in 1 Hydraulic Machinery Kit (TG4399260) — product detail panel 8

STEM Set, 4 in 1 Hydraulic Machinery Kit (TG4399260) — product detail panel 9

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From a product idea to an approved specification

Submit a Design or Idea

Send us your drawings, sketches, references or creative concepts and we will assess the feasibility and provide a quote.
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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.
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Modify and Optimize Samples

We will modify the sample according to your modification suggestions until the final sample meets the requirements.
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Mass Production

We will carry out mass production according to the confirmed samples, control the quality and deliver on time.
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Packaging and Delivery

Packing, labeling and boxing according to customer requirements, and arrange reliable logistics transportation.
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After-sales Service

If you encounter any problems, please feel free to contact us and we will provide perfect after-sales support.
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About Us

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The support behind your order

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.
2026 factory audit document preview

Factory & product documentation

Management-system certificates and model-level test reports are separate documents. Ask which reports exist for the exact model, material and destination market before ordering.
MODEL TG4399260

Product & sourcing FAQ

Practical answers for buying STEM Set, 4 in 1 Hydraulic Machinery Kit. Use the SKU to keep samples, packing and quotations aligned.

Discuss this model ↗
What are the main product details for TG4399260?

STEM Set, 4 in 1 Hydraulic Machinery Kit is listed with DIY Hydraulic Machinery 4-in-1 STEM Set, No Batteries Needed, DIY Coloring Available and Family Bonding Through Building. Review the detailed product panels for the illustrated configuration. Match the sample and written order specification to TG4399260, including any selected accessories or color assortment.

How do I confirm the consumables and activity contents?

Compare an itemized contents list with the sample and complete the intended activity using the supplied materials. Confirm consumable quantities, refill availability and cleanup instructions. Material and age claims are checked for the exact configuration and destination market.

How is TG4399260 packed, and is the carton quantity the MOQ?

Retail packaging: COLOR BOX. Retail pack dimensions: 23*17*6CM. Outer carton dimensions: 54*48*54CM. Units per carton: 48/PCS. These are listed packing references, not a minimum order quantity. Confirm the final carton data on the quotation.

Which power and accessory details should I confirm for TG4399260?

Confirm the power source, battery type and quantity for each powered unit in the set. Check whether batteries, charging equipment and any controller are included in the quoted pack. Where a rechargeable version is selected, approve its charging instructions and shipping documentation; runtime and operating range require confirmation on that version.

Can I request a sample or branded packaging for TG4399260?

Reference TG4399260 and specify your quantity, destination and required retail presentation. Sample availability, sample cost and any branding options are checked for this model. Approve the sample, artwork and final pack specification before bulk production; customization MOQ and timing are confirmed in the written quotation.

Which test documents should I request for TG4399260?

Request documents that identify the exact model, materials, age grade and configuration being ordered. The required scope depends on your destination market. A factory audit describes the audited facility; a product report covers the models and tests identified in that report. Website certificate examples do not establish coverage for TG4399260.

What information will help you quote TG4399260 accurately?

Send TG4399260, units required, destination country, sales channel and required arrival date. Specify packaging, branding and testing requirements and list any other TG models to consolidate. Price, MOQ, production timing and trade terms are confirmed for that specification; carton capacity alone does not set the order minimum.

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A stronger buying brief

Product link or TG SKU · Quantity per item · Country · Sales channel · Branding needs · Required arrival date