OEM & ODM Custom Sauna Manufacturing Solutions
We translate custom technical drawings into certified, market-ready saunas and cold plunges. Benefit from factory-direct pricing, sustainable timber, and secure global container logistics.
100%
CAD verified
CE/RoHS
Fully certified
From Your Idea to the Finished Product.
Flexible manufacturing solutions for brands, distributors, retailers, and wellness projects — from product customization to new product development.
More Than Product Customization
Whether you already have a product specification or only an initial concept, we work with you to turn your requirements into a manufacturable product.




ODM
Develop Something of Your Own.
Start with an idea, reference product, drawing, or concept. Our team can support product development, engineering adaptation, prototyping, and production.
OEM
Customize What Already Works.
Start with one of our existing products and adapt the size, materials, configuration, features, finish, or branding to meet your requirements.
Your Specification → Our Manufacturing
Your Idea → Product Development → Finished Product
WHAT CAN WE CUSTOMIZE
01 — SIZE & DIMENSIONS
Adapt the product dimensions to your space, packaging, or market requirements.
02 — MATERIALS & FINISHES
Choose from different wood species, finishes, colors, and material combinations.
03 — INTERIOR CONFIGURATION
Adjust benches, layouts, doors, windows, storage, and interior details.
04 — HEATING SYSTEMS
Configure heating systems and related components according to the product and market requirements.
05 — FEATURES & ACCESSORIES
Add selected lighting, controls, audio, ventilation, and other product features.
06 — BRANDING
Private labeling, logos, packaging, manuals, and other brand-related requirements.


Turn Concepts Into Products
Have a reference product, drawing, sketch, or simply an idea? We can work with you to develop a production-ready solution.
01 IDEA
Your concept / reference / drawing
02 DEVELOPMENT
Structure / materials / configuration
03 PROTOTYPE
Sample / testing / refinement
04 PRODUCTION
Manufacturing / inspection / packaging
Start with a Proven Product. Make It Yours
STANDARD MODEL
Existing product


CUSTOM CONFIGURATION
Size / materials / features / layout
YOUR BRAND
Logo / packaging / private label
Built for Different Business Models
BRANDS
Develop products under your own brand.
DISTRIBUTORS
Customize products for your local market.
RETAILERS
Create differentiated product offerings.
PROJECT DEVELOPERS
Develop solutions for hospitality and wellness projects.
A Clear Path from Concept to Production
01 DISCUSS
Share your requirements, drawings, reference products, or ideas.
02 DEVELOP
We review specifications, structure, materials, and production feasibility.
03 QUOTE
Confirm configuration, tooling/sample costs, pricing, and lead time.
04 SAMPLE
Develop and review the sample before mass production.
05 PRODUCE
Begin production after final approval.
06 DELIVER
Complete inspection, export packaging, and shipment.
Have a Product in Mind?
Tell us what you need. Our team will review your requirements and help you determine the right manufacturing solution.
Nanjing Zenith Smart Innovation Tech Co., Ltd
Architectural-grade thermal wellness at factory-direct scale.
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cygsupply@gmail.com
WhatsApp: +86 15895873728
Headquarters & Factory: Jiang su, China
© 2026 Kala Thermal-Factory-direct scale. Certified international export.
OEM/ODM PRECISION
