Manufacturing began
1988
38 years of consistent production.
Manufacturing since 1988
SQUAREROPE. Engineered for continuity.
38 years, one factory, belts trusted in 60+ countries.
Supplier summary
SQUAREROPE at a glance
- Brand
- SQUAREROPE industrial power transmission belts
- Company
- Union Thai Industrial Co., Ltd. (聯泰興實業有限公司)
- Sales office
- Changhua, Taiwan (sales and quotations; not the production site)
- Manufacturing
- Our own factory in Thailand, making belts since 1988
- Products
- Wrapped and raw-edge V-belts, banded V-belts, multi-ribbed (Poly-V) belts, automotive and light-duty belts
The proof
Every Number Earned. Every Batch Documented.
38 years of production. Every number documented.
Factory area
12,500m²
Our own factory, from compound mixing to final inspection.
Quality system
ISO 9001:2015
Your order. Every batch documented.
Countries served
60+
The same quality standard for every export market.
How we deliver
Factory to Warehouse. One Team Accountable.
If a belt fails on your production line, it's our problem. We make it, we stock it, we track every batch, and we answer for it.
01
Made in-house. Our factory, our quality.
12,500 m² facility in Thailand. 400+ employees. We control production from compound mixing to final inspection.
- Engineered elastomer compound. Single-shot vulcanization.
- ISO 9001:2015 certified. Every batch traceable.
02
Ready stock. Or made to order.
Your belt. In stock. Standard sizes across all five belt families.
- V-belts, cogged V-belts, multi-rib, banded V-belts — standard sizes covered.
- Belts trusted in 60+ countries.
03
Technical guidance. Right belt, first time.
Tell us your application. We confirm the belt.
- Recommendations based on your application environment.
- Compound recommendations — high-temp, oil-resistant.
04
Support that outlasts your purchase.
Delivery isn't the end. If something doesn't fit or perform as expected, we work through it with you.
- Technical feedback, issue resolution, spec adjustments — ongoing.
- Ongoing support, not just a one-time transaction.
Manufacturing since 1988
From one factory to 60+ countries.
Union Thai Industrial Co., Ltd. is the company behind the SQUAREROPE brand — manufacturing high-performance industrial rubber belts since 1988. Our own factory in Thailand employs 400+ workers across a 12,500 m² facility. With manufacturing expertise since 1988 and ISO 9001:2015 accreditation (AJA Registrars Ltd, December 2017), every SQUAREROPE belt is built to deliver reliable power transmission. We manufacture rubber belts for industrial and automotive applications, serving customers worldwide. Full-line inventory, flexible batch ordering, and fast delivery allow us to meet customers' one-stop sourcing needs — from classic V-belts to cogged, banded and multi-ribbed belts. Care, Confidence, and Creativity (3Cs) is the motto behind everything we do. Union Thai Industrial will continue providing competitive pricing, consistent quality, and responsive service our customers expect.
Our Journey
- 1988
Thailand Manufacturing Begins
Manufacturing began at our own factory in Thailand.
- 2017
ISO 9001:2015 Accreditation
Factory management system accredited by AJA Registrars Ltd (Anglo Japanese American) in December 2017.
- 2024
Worldwide Belt Supply
Union Thai Industrial Co., Ltd. manufactures and supplies industrial and automotive rubber belts worldwide under the SQUAREROPE brand — with full-line stock, technical guidance, and global delivery.
Who to contact
The right person picks up.
Sales, technical, quality — your request goes directly to the right person.
01
Quotes, orders, shipment tracking.
Sales Desk
Provides quotes, processes orders, and tracks shipments — one direct contact.
02
Sizing advice, spec confirmation, issue handling.
Technical Support
Confirms specs, recommends compounds, and resolves technical issues.
03
Certification files, inspection reports, quality tracking.
Quality & Compliance
Provides certification documents, coordinates inspections, manages QA follow-up.
Get a direct line
Talk to the People Who Make Your Belts.
Specs, quantities, or replenishment — one direct line to the factory team.