Plastic Double Step Kids Stool Mould

Plastic Double Step Kids Stool Mould – Custom Safe & Stable Children’s Step Stool Injection Mold Manufacturer

ZHONGYUE MOULD is a professional Chinese injection mold manufacturer supplying Plastic Double Step Kids Stool Moulds / Two-Step Toddler Stools, Bathroom Assist Steps, and Kitchen Helper Stools to global baby product brands, children's furniture retailers, and preschool suppliers. Unlike decorative kids' chairs, Double Step Stools are functional tools designed to help children safely reach sinks, counters, and high shelves. They must be ultra-stable, slip-resistant, and structurally bomb-proof.

Typically molded in Food-Grade / Non-Toxic PP (MFR 10–20) or HDPE, these stools feature two ascending platforms, a wide flared base for stability, and aggressive anti-slip textures on both the top surface and the underside. Our molds feature robust internal ribbing, hidden submarine gates, and optimized cooling (BeCu inserts) to achieve cycle times of 30–45 seconds. We ensure all designs pass 100kg static load tests and tip-over simulations.

From simple bathroom steps to foldable helper towers (compatible), we provide full DFM review focusing on structural integrity and anti-slip performance before steel cutting.

Plastic Stool Mould specifications :

Make your next Plastic Stool Mould project brighten!

What Is a Plastic Double Step Kids Stool Mould?

A Double Step Kids Stool Mould is a precision tool designed for safety and utility:

Two-Tier Platform — Two steps of different heights (e.g., 150mm and 300mm) allow gradual climbing.

Anti-Slip Priority — Top surface has deep textured patterns (diamonds, circles, dots). Bottom has non-slip rubber pad grooves or textured feet.

Wide Base Stability — The base is significantly wider than the top platform to lower the center of gravity and prevent tipping.

Safety Hand Grips — Often includes molded-in cutouts or handles for kids to hold while climbing.

Key Mold Engineering Highlights (Double Step Stool Mold)

Internal Ribbing for Load Distribution

To support 100kg without flexing, we design a lattice of internal ribs connecting the two steps. Ribs are 60–70% of the wall thickness and feature generous fillets (R2–R3mm) to prevent stress cracks. We use BeCu inserts behind thick rib intersections to prevent sink marks on the visible step surface.

Anti-Slip Texture & Draft Optimization

Deep anti-slip textures (0.3–0.5mm depth) require 3–4° extra draft. We calculate this precisely to prevent the plastic from sticking. The core (inner surface) is polished to SPI A2/B1 to ensure the stool clings to the core and releases from the textured cavity.

Complex Undercut Solutions (The Double Step Challenge)

The area where the lower step meets the upper step often creates an undercut. We solve this with:

Internal Collapsible Core (Segmented core that shrinks away from the undercut).

Angled Lifters (Moving upward to clear the lower step ledge).

Side-Action Sliders (For complex handle cutouts).

Bottom Non-Slip Feature Molding

The underside often features deep grooves for TPE rubber pads or raised textured nubs. We design these to be moldable without causing ejection issues.

Fast Cycle Cooling Design

Steps are relatively thick (3.0–4.0mm) for strength. We use BeCu baffles through the core and isolated water circuits to extract heat quickly, ensuring the stool is rigid enough for immediate stacking.

Hidden Gate & Weld Line Control

Gates are placed on the inner rim of the lower step or underneath the top step platform to hide vestige. Moldflow analysis ensures weld lines do not appear on the climbing edges or high-stress areas.

Our Manufacturing & Validation Process (Step Stool Mold)

Safety & Load DFM — Verify 100kg static load and tip-over resistance. Analyze undercut mechanism (lifters/sliders). Free DFM report.

Anti-Slip Texture Machining — CNC roughing and EDM texturing of the step surface. Polish core to SPI A2/B1.

Undercut Mechanism Fitting — Precision grind lifters or collapsible core segments. Ensure smooth movement.

Assembly & T1 Trial — Run trial with specified PP. Perform 100kg load test and tip-over test. Check anti-slip texture clarity. Supply trial video + samples.

Final Delivery — Package with care. Include safety inspection report and mold maintenance guide.

Why Choose ZHONGYUE MOULD for Your Double Step Stool Mold?

Functional Safety Experts — We design for 100kg load capacity and zero tip-over, not just cute looks.

Anti-Slip Masters — Our molds create deep, effective anti-slip textures that actually work when wet.

Complex Undercut Solutions — We expertly handle the double-step geometry using lifters, sliders, or collapsible cores.

Fast Cycle Production — Optimized BeCu cooling for high-volume toy and furniture manufacturing.

Global Experience — Molds supplied to baby product giants and children's furniture brands worldwide.

Frequently Asked Questions — Double Step Kids Stool Mould

Q: How do you ensure the stool doesn't tip over?

A: We design a wide, flared base (wider than the top step) and run tip-over simulations in DFM. The center of gravity is kept very low.

Q: Can you mold the anti-slip texture without sticking?

A: Yes. We calculate 3–4° extra draft for the deep texture and polish the core to SPI A2/B1. The plastic sticks to the shiny core and pulls away from the textured cavity.

Q: What material is best for step stools?

A: Food-Grade / Non-Toxic PP is standard for its flexibility and impact resistance. HDPE is also used for higher stiffness.

Q: How do you handle the undercut between the two steps?

A: Depending on the design, we use internal lifters, a collapsible core, or side-action sliders to clear the undercut and allow ejection.

Q: What do you need for a quotation?

A: 2D drawing (PDF/DWG) + 3D model (STP/IGS) of the stool, specifying material, load requirement (e.g., 100kg), and anti-slip texture style.

Request a Quote for Your Plastic Double Step Kids Stool Mould

Send your step stool drawings or concepts to ZHONGYUE MOULD. We will provide a free DFM report covering safety, load capacity, and undercut mechanism + formal quotation within 24–48 working hours.

Contact us now to build a safe and stable Double Step Kids Stool Injection Mold!

How we processing the project?

About us

Driven by the philosophy:

“Quality Makes the Future, Focus Creates Professional”

Zhongyue Mould is a leading company in the plastic injection air conditioner Cover mould industry. Our highly experienced team of engineers and designers have many decades of combined experience in plastic air conditioner Cover mould design and manufacturing. We provide a comprehensive service, specializing in the production of high-quality and high-precision air conditioner Cover moulds. We have also assisted numerous customers in customizing various types of plastic air conditioner Cover moulding lines.

We can also offer comprehensive assistance in the management of your production process. The procurement department will purchase high-quality raw materials, while the technical department will select the appropriate plastic formula. In accordance with the parameters of the plastic air conditioner Cover mould life requirements and market positioning, we will select the most suitable plastic air conditioner Cover parameters, structure, etc. Our extensive production capacity allows us to deliver plastic air conditioner Covers promptly, at competitive prices and with guaranteed quality.