Foldable bucket mold
When reliability and precision matter, YUCO MOLD delivers. As one of China's leading foldable bucket mold manufacturers, we engineer high-performance injection molds for collapsible buckets used across outdoor, industrial, household, and promotional markets.
Foldable bucket mold — collapsible container solutions
YUCO MOLD — China’s expert injection bucket mold manufacturer. Whether you need a standard single-cavity tool or a complex 2K injection foldable bucket mold, our team brings decades of expertise to every project — from first concept to final production.
- Precision collapsible mechanism design: The defining challenge of a foldable bucket mold lies in engineering the hinge, rib, and sidewall geometry that allows the bucket to collapse flat without cracking — and snap back into shape without deformation after hundreds of cycles. Our tooling engineers design for functional longevity, validating hinge flexion life through both simulation and physical testing.
- Multi-material & 2K injection capability: Our 2K injection foldable bucket mold solutions allow for two-component molding — for example, a rigid PP structural body combined with a soft TPR/TPE hinge or grip zone — all in a single automated cycle.
- High-efficiency cooling system: Foldable buckets with thin-wall collapsible panels demand tight cooling control to prevent warpage and maintain dimensional stability. We implement conformal cooling channels and beryllium copper inserts in thermally critical areas to achieve fast, even cooling and short cycle times.
2K injection foldable bucket mold specifications
| Parameter | Standard specification | Custom range |
|---|---|---|
| Mold type | Cold runner / hot runner | Available per design |
| Cavity configuration | 1-cavity, 2-cavity, 4-cavity | Up to 8-cavity |
| Applicable materials | Pp, hdpe, ldpe, tpe, tpr | Abs, pc+abs, PA66 |
| 2k mold capability | Pp + tpe / pp + tpr | Custom material pairing |
| Bucket volume range | 3l – 20l | Up to 30l on request |
| Wall thickness | 1.0mm – 3.0mm | Optimized per dfm |
| Mold base steel | Lkm / hasco / dme standard | Custom mold base available |
| Cavity / core steel | P20 (pre-hardened), H13 | S136 for corrosive resins |
| Surface hardness | Hrc 28–32 (P20) / hrc 48–52 (H13) | Per material specification |
| Mold life (shots) | 500,000+ (standard) | 1,000,000+ (hardened) |
| Cooling system | Straight-line / conformal | Beryllium copper insert |
| Gate type | Pin gate, submarine, hot tip | Per part geometry |
| Ejection system | Ejector pin / stripper plate | Air-assisted available |
| Surface finish | Spi A1–B3, vdi, mt texture | Laser engraving available |
| Lead time (T1 sample) | 35–45 days | Expedited upon request |
| Export standard | Hasco / dme / customer spec | ISO compliance |
China bucket mold manufacturer
How we build your foldable bucket mold — step by step
At YUCO MOLD, we follow a structured, fully documented workflow that takes your project from initial concept through to a validated, production-ready tool. Every step is tracked, every decision is communicated, and nothing moves forward without your sign-off at the critical milestones. It is what allows us to consistently deliver molds that perform on the first production run, minimize costly revisions.
01 DFM report & mold design
We prepare a full Design for Manufacturability (DFM) report covering parting line strategy, draft angles, undercut handling, gate locations, ejection layout, and venting plan. Upon your approval, mold design begins in UG NX / CATIA / SolidWorks.
02 Steel procurement & verification
We source steel from certified suppliers and validate material certification documents (MTC). Hardness is verified before machining begins. No substitutions without your written approval.
03 CNC roughing & semi-finishing
High-speed CNC machining centers (FANUC / Mazak) rough out the mold base, cavity, and core blocks. Tolerances are held within ±0.02mm through this phase.
04 EDM & fine detail machining
Electrical Discharge Machining (EDM / wire-cut EDM) handles sharp corners, ribs, thin cores, and complex collapsible geometry that CNC cannot reach. This is critical for the hinge zones and fold geometry in foldable bucket molds.
05 Polishing & surface treatment
Skilled bench technicians hand-polish cavities to the specified SPI grade. Texture, laser engraving, or nitriding treatments are applied at this stage.
06 Trial molding
The first trial run is conducted on our in-house injection molding machines. T1 sample parts are measured dimensionally, assessed for surface quality, and evaluated for fold/unfold function.
Why choose YUCO Foldable bucket mold
YUCO MOLD was built on bucket molds. It's not a side product — it's our core competency. From straight-wall pails to multi-component foldable bucket molds, we've delivered thousands of tools to clients in North America, Europe, Australia, and Southeast Asia.
One-Stop Service
Competitive Pricing
20+ Years of Bucket Mold Specialization
Rigorous Quality Management
Project Tracking
Long Mold Life
Frequently asked questions
What is a foldable bucket mold?
A foldable bucket mold is an injection mold designed to produce collapsible buckets — containers that can be folded flat for storage or transport and restored to full shape for use. Unlike standard rigid bucket molds, foldable bucket molds require precise engineering of the hinge geometry, sidewall flex characteristics, and material flow paths to ensure structural integrity across repeated folding cycles.
What plastics are best suited for foldable bucket production?
The most common materials are PP (Polypropylene) for a balance of rigidity and flex, LDPE / HDPE for softer, more pliable walls, and TPE / TPR for integrated soft-grip or flexible hinge zones (especially in 2K injection configurations). Material selection depends on the intended use environment, temperature range, chemical exposure, and regional regulatory requirements.
What is a 2K injection foldable bucket mold?
A 2K (two-component) injection foldable bucket mold uses a rotary or index plate system to mold two different materials in a single machine cycle. For example, the rigid structural body may be molded in PP in the first shot, and soft TPE grip panels or hinges over-molded in the second shot. This creates a finished, multi-material part without secondary assembly — improving consistency and reducing per-unit cost at volume.
Is it better to use a two-shot (2K) mold or a secondary overmolding process for foldable buckets?
Two-shot molding produces stronger bonding between the rigid PP frame and TPE flexible body because the second material is injected onto a still-warm substrate within the same machine cycle, improving molecular adhesion. Secondary overmolding is lower in upfront tooling cost but introduces handling steps, cooling variation, and higher risk of bond failure at the interface. For production volumes above 50,000 units annually, two-shot tooling delivers better consistency, lower per-part cost, and more reliable leak performance at the rim-to-body joint.
Why is a foldable bucket mold significantly more expensive than a standard rigid bucket mold?
A standard rigid bucket mold forms one material in one cavity with straightforward ejection. A foldable bucket mold requires precision geometry for fold zones, multi-material compatibility, tighter dimensional tolerances across the rim and sealing surfaces, and more complex cooling channel routing. Tooling often incorporates side actions or collapsible cores to release undercut geometry. These engineering requirements add machining time, material cost, and validation cycles. Expect tooling costs to run 40–80% higher than a comparable rigid bucket mold.
How do mold designers prevent the flexible TPE section from flashing or peeling away from the rigid PP frame?
Flash prevention relies on precise shut-off geometry at the PP-TPE interface, typically held to tolerances within ±0.05 mm. The rigid substrate must be fully cooled and dimensionally stable before TPE injection begins. Gate location for the TPE shot is positioned to fill toward the bond line, not away from it, reducing pressure buildup at the edge. Peeling is addressed through mechanical interlocking features, such as undercut channels or perforated zones in the PP frame, which anchor the TPE beyond chemical adhesion alone.
What is your mold warranty policy?
YUCO MOLD provides a 12-month warranty on all molds from the date of T1 sample approval. Within this period, any defects attributable to workmanship or material quality are repaired or replaced at no charge. We also offer long-term mold maintenance contracts for clients running ongoing production.
Can YUCO MOLD handle the full production run, or only mold making?
YUCO MOLD is primarily a mold manufacturer, but we also offer contract injection molding services for clients who require a complete supply chain solution — molding, assembly, quality inspection, and export packaging. Ask our team about our full-service production options.
What quality standards do your molds comply with?
Our molds comply with ISO 9001 quality management standards, and we can design and document tooling to HASCO, DME, or customer-specific mold base and component standards. Material traceability, inspection records, and mold documentation packages are provided as standard.
Ready to build your foldable bucket mold?
If you are preparing a foldable bucket project, now is the right time to validate the design before committing to tooling. Contact YUCO for a free DFM analysis, a custom injection mold quote, or direct consultation with an in-house engineering team to move your concept toward reliable mass production.
Tell us your requirements for products and molds, as well as detailed information about the supporting injection molding machine, which will help us provide you with a quotation as soon as possible.
Looking forward to in-depth and long-term cooperation with you.
Tel: +86 13586040750
