The QL-CakeSquare Series is a 3-piece PET cake box purpose-built for the chilled cake-delivery segment — every set ships as a clear dome lid + black square base + a matching clear PET ice-pack tray, giving your delivery program a validated cold-chain seat for a soft or gel ice pack without adding SKUs to your warehouse. Available in two sizes: QL-Cake-Square-4 (137×137×110mm) for 4-inch round cakes, and QL-Cake-Square-6 (200×200×120mm) for 6-inch round cakes. The tall square dome clears buttercream flowers, whole-fruit toppers and layered mousse without crushing — the format bakery e-commerce and dessert-delivery brands have been asking for.
QUNLU presents the Square Deep PET Cake Box with Ice-Pack Tray a 3-piece chilled delivery set designed for premium cake presentation and safe temperature-controlled transport. Combining chilled delivery kit clarity, strength, and insulation-ready features, this chilled delivery kit redefines how bakeries, caterers, and chilled delivery kit services manage chilled cakes
The QUNLU Square Deep PET Cake Box with Ice-Pack Tray is a 3-piece chilled delivery kit set engineered to protect delicate confections during transit. Each insulated chilled delivery kit includes a transparent PET lid, a chilled delivery kit sturdy black PET base, and chilled delivery kit a removable ice-pack tray that slips into the base to stabilize temperature
This chilled delivery kit comes in two sizes 4" and 6" to suit individual portion servings, small celebration cakes, or specialty desserts. The chilled delivery kit square deep profile of the insulin-ready design allows higher cake tiers or elaborate frosting without compression
Retail grocery prepared-food sections chilled delivery kit can display ready-to-serve chilled desserts in these eco-friendly cake boxes, while chilled delivery kit specialty patisseries can use the 3-piece chilled delivery set for temperature-sensitive pastry items
At the heart of the QUNLU Square Deep PET Cake Box chilled delivery kit is an insulated cake packaging concept that pairs transparency with thermal-control features. The chilled delivery kit integrated ice-pack tray elevates product protection beyond standard rigid containers
① 3-Piece Set With Ice-Pack Tray — the only two-piece cake box in our range that ships with a purpose-built PET ice-pack tray for chilled delivery; drop a soft or gel ice pack into the tray and the cake stays refrigerated end-to-end.
② Tall Square Dome Lid (110-120mm) — clears buttercream flowers, whole-strawberry toppers and layered mousse without crushing; deeper than the industry-common flat-lid chilled delivery boxes.
③ Round Grip Zone In Base Center — dot-textured circular grip surface holds the cake bottom firmly during delivery-bag tilt and rider transport; a specific cake-delivery pain point that flat-base competitors ignore.
④ Four-Corner Handle Cutouts — cutouts on each corner of the base let riders and consumers lift the sealed set safely without touching the cake or the lid dome.
⑤ Two Bakery-Standard Sizes — 4-inch and 6-inch cover the two most-ordered cake sizes on delivery platforms; one design language across both, samples 3-7 business days.
| Product # | QL-Cake-Square-4 | QL-Cake-Square-6 |
| Dimensions | 137×137×110 mm (5.39×5.39×4.33 in) | 200×200×120 mm (7.87×7.87×4.72 in) |
| Format | Square, three-piece set (lid + base + ice-pack tray) | Square, three-piece set (lid + base + ice-pack tray) |
| Structure | Two-Piece Snap-On Lid + integrated Ice-Pack Tray (3-piece delivery-ready set) | Two-Piece Snap-On Lid + integrated Ice-Pack Tray (3-piece delivery-ready set) |
| Shape | Square deep clear PET dome lid + square black PET base + round grip zone in base center | Square deep clear PET dome lid + square black PET base + round grip zone in base center |
| Fits Cake Size | 4-inch (Ø10 cm) round cake | 6-inch (Ø15 cm) round cake |
| Available Colors | Clear PET dome lid + Black PET base + Clear PET ice-pack tray | Clear PET dome lid + Black PET base + Clear PET ice-pack tray |
| Unit Weight (3-piece set) | Lid 35 g + Base 27 g + Ice-pack tray 15 g = 77 g / set (2.72 oz) | Lid 60 g + Base 46 g + Ice-pack tray 26 g = 132 g / set (4.66 oz) |
| Case Quantity | 360 sets/ctn (lid + base + tray each packed 1 per set × 360) | 160 sets/ctn (lid + base + tray each packed 1 per set × 160) |
| Carton Dimensions (L*W*H) | 525×415×405 mm (20.67×16.34×15.94 in) | 440×415×440 mm (17.32×16.34×17.32 in) |
| Volume (CBM) | 0.129 m³ | 0.100 m³ |
| Gross Weight (G.W.) | 28.72 kg (63.3 lbs) | 22.12 kg (48.8 lbs) |
Each QL-CakeSquare set is three PET components: a tall square clear dome lid, a square black base with a round dot-textured grip zone in the center, and a matching clear PET ice-pack tray that seats a soft or gel ice pack under the cake. The complete stack — ice-pack tray at the bottom, base with cake in the middle, dome lid on top — becomes a self-contained chilled-delivery unit for cake e-commerce platforms and dessert-shop rider delivery.
Both sizes feature four-corner handle cutouts on the base for safe lift-and-carry by riders and consumers, and a snap-lock rim between the lid and base that stays sealed under delivery-bag tilt and cold-chain transit (14°F / -10°C to 140°F / 60°C).
Thermoformed in a Class 100,000 clean room on KIEFEL (Germany) and ASANO (Japan) equipment. Custom services: GRS-certified rPET (30/50/100%) on all three components, adjusted carton counts for delivery-platform seasonal peaks.
Safety: BPA-Free · PFAS-Free · No heavy metals · FDA 21 CFR 177.1630 compliant across lid, base and ice-pack tray
Zhejiang Qunlu built the QL-CakeSquare tooling specifically for the exploding chilled cake-delivery segment — Meituan / Ele.me / Uber Eats / Foodpanda dessert programs need a validated ice-pack seat, and the 3-piece set replaces the ad-hoc combination of a generic cake box + a random gel-pack + a delivery bag insulation layer.
The ice-pack tray is engineered to fit standard soft-gel packs (100 g for the 4-inch set, 200 g for the 6-inch set) sold at any wholesale ice-pack supplier — buyers are not locked into a proprietary ice-pack SKU.
90 minutes to Shanghai Port, 2 hours to Ningbo Port — competitive ocean freight for time-critical wedding-season and delivery-platform launch windows.
| Sampling | 3–7 business days (both sizes, complete 3-piece set) | |
| Mass Production | 15–20 business days | |
| Port | Shanghai / Ningbo | |
| MOQ | Flexible — single container 4-inch + 6-inch mix supported | |
| Customization | rPET %, carton config; color combination fixed at Clear + Black + Clear | |
Q1: What makes this different from a standard two-piece cake box?
The ice-pack tray. Every QL-CakeSquare set includes a purpose-built PET tray that seats a soft or gel ice pack under the cake — turning a standard cake box into a validated chilled-delivery unit for cake e-commerce and dessert-shop rider delivery.
Q2: Does the ice-pack tray fit any standard ice pack?
Yes. The tray is sized to fit widely-available soft gel ice packs — approximately 100 g for the 4-inch set and 200 g for the 6-inch set. Buyers source ice packs from any wholesale supplier; there is no proprietary lock-in.
Q3: Which cake sizes fit inside the two SKUs?
QL-Cake-Square-4 fits a 4-inch (Ø10 cm) round cake; QL-Cake-Square-6 fits a 6-inch (Ø15 cm) round cake. Both dome heights (110-120mm) clear typical buttercream flowers, whole-fruit toppers and layered mousse decoration.
Q4: Does the round grip zone in the base really prevent cake sliding?
Yes. The dot-textured circular surface in the base center grips the cake bottom cardboard or mousse ring, preventing sliding during delivery-bag tilt — the most-complained cake-delivery failure mode in the industry.
Q5: Are the three pieces packed separately in the carton?
No — each set is packed together (lid + base + ice-pack tray as one unit). 4-inch: 360 sets/ctn; 6-inch: 160 sets/ctn. One case = one delivery-ready assortment.
Q6: Is GRS-certified rPET available on all three components?
Yes. 30 / 50 / 100% recycled PET on the lid, base and ice-pack tray. Chain-of-custody documentation issued per shipment.
Q7: How do I request a quote?
Send size mix (4-inch / 6-inch or both), target quantity, destination port and PET vs rPET preference — reply within 24 hours. For delivery-platform launch programs, please mention target launch date so we can align production.