Spiral Freezer
High-capacity spiral freezing for meat, poultry, seafood, bakery, and prepared foods. Single and double-drum configurations. Belt widths to 1,400 mm.
The No.1 Spiral Freezer Manufacturer in China
Square Technology Group is China’s No.1 and one of the world’s largest IQF freezer manufacturers, listed on the Shanghai Stock Exchange since 2016 (SSE 603339).
Solutions
Which freezing technology fits your product? Our guides cover selection, capacity planning, and refrigerant trade-offs, drawn from 5,000+ installations in 80+ countries.
WHAT WE BUILD
From One Machine to a Complete Line
We engineer and manufacture every system ourselves, in one facility. That means one quality standard, whether you order a single freezer or a full production line.
Industrial Freezing
Cooling & Cold Storage
Heating & Proofing
Refrigeration
Cold Room Systems
Turnkey Lines
FEATURED SYSTEMS
Proven Equipment for Every Stage of Production
Every machine we build is designed to cut your energy costs, keep product quality consistent, and keep your line running.
Spiral Oven
Continuous spiral cooking and baking. Multi-zone temperature control, steam injection, and precise airflow. For breaded products, baked goods, roasted items.
Fryer
Continuous deep-frying for coated products, par-fried snacks, and prepared foods. Precise oil temperature control, sediment removal, and filtration system.
Built in One Place
Design, steel fabrication, refrigeration assembly, panel foaming, electrical production, and final testing all happen on our Nantong campus. Every major step stays under one roof and one quality system, which is why we can stand behind both the equipment and the delivery date.
GLOBAL INSTALLATION & SERVICE
200-Person Installation Team — We Build, Not Just Advise
Most manufacturers send an engineer to supervise local contractors. We send our own 200-person crew. Foundation work, mechanical installation, electrical wiring, commissioning: one team handles the complete on-site build. Spare parts, training, and preventive maintenance are included from contract to handover.
200+ Installation & construction crew
≤48h Emergency response time
Global On-site deployment worldwide
Remote Diagnostics + support
Technical Resources
Latest from Engineering
Application notes, buying guides, and technical articles from the engineering team.
Optimal Temperature for IQF Tunnel Freezers: Precision in Rapid Freezing
IQF tunnel freezers operate at temperatures between −30 °C and −40 °C to freeze individual food pieces quickly while preserving texture, color, and nutritional value.
Read More
Can You IQF Freeze Raw Meat Patties Without Sticking? Expert Guide
Yes — raw meat patties can be IQF-frozen without sticking. In an industrial IQF freezer, high-velocity air at −30 °C to −40 °C sets each
Read More
How to Prevent Glazing Loss in IQF Shrimp: Best Practices and Technologies
Preventing glazing loss requires careful control at every step: proper pre-freeze preparation, precise glaze application, stable cold-chain conditions, and routine verification. A loss of even
Read More
Global Reach
80+ Countries. 5,000+ Installations.
Equipment operating from Nordic cold stores to Southeast Asian processing plants.
PIR Panels (SQPanel), Refrigeration System ·
Box-in-Box Cold Storage Deployment in North America
Published by: Square Technology Group – North America Sales Team Executive Summary Box-in-box cold storage
Spiral Freezer, Refrigeration System, Air Cooler / Evaporator / Condenser · Chicago
Spiral Freezing Solution for Steamed Dumplings
Client Location: ChicagoEquipment Supplier: Square Technology Group Co., Ltd. IQF: Ambient spiral cooler& spiral freezerRefrigeration
Spiral Freezer ·
The Rise of Cheesy Beef Rolls: A Frozen Food Favorite Evolves
The Cheesy Beef Roll has emerged as a rising star in the frozen food aisle—a
Fryer, Refrigeration System, Spiral Freezer · Chicago, Illinois area, USA
Chicago Fried Chicken Nugget Production Line
Project Overview Square Technology Group delivered a complete fried chicken nugget processing line up to spiral
Spiral Freezer, Refrigeration System, Air Cooler / Evaporator / Condenser · Corona, California
An Integrated Freeze-Drying Solution for Pet Food Processing
An Integrated Freeze-Drying Solution for Pet Food Processing Canature Processing Ltd. is a global leader
Spiral Freezer · India
How Chata Foods Kept its Authentic Mexican Flavor During a Major Production Expansion
How Chata Foods Kept its Authentic Mexican Flavor During a Major Production Expansion For over
News
Latest News & Updates
Company updates, exhibitions, product milestones, certifications, and engineering articles from Square Technology Group.
Not Sure Which Equipment Fits Your Production Line?
Tell us the food type, target capacity, and product format. An engineer will recommend the right system configuration — with reference case data from similar installations.
