Our Company
Association of Three Co is a manufacturer of equipment for the “environmental industries” (the Three in the company name are earth, air and water, not people!).
Thepthai Udomchanya started this company in 199 3 and has built it into a very successful organisation supplying equipment for water and wastewater treatment throughout Asia and beyond. We have an excellent staff and workforce, many of whom have been with the company over 10 years, and we make equipment which is technically superior, developed by the expert knowledge of our staff. We have a flexible and very capable manufacturing team, so we can make each unit as you need it, to match your exact requirements.
Our Aims
- To build equipment to protect the environment
- To continually improve our work and designs through innovation and R&D
- To develop staff and provide promotion opportunities for competent staff
- To expand international sales whilst maintaining local competitiveness
- To promote Quality of Life for all employees and to enjoy our work
Our Objectives
- To make a reasonable profit
- A zero accident rate
- 100% Customer Satisfaction
Our Products
We make a variety of equipment for water and wastewater applications. This is a short summary of the items more fully described in “Products” elsewhere on the website.
We make five patterns of screens,
- 3mm or 5mm aperture fine screens which are developed from the “Aquagard” pattern. We make this as a channel fitting model, for small or large works. It needs no special concrete features. It comes completely pre-assembled and has no fixings below deck level, so is easily installed. The tines are made from a very high quality ABS we have developed, and are very durable. We also manufacture small units in their own tanks for industrial use, particularly in food preparation industries. These just fit onto the end of a pumping main and stand wherever the customer needs them. They have been very well received in Thailand .
- A bar screen of original design which can be installed in channels, or in deep shafts as pump protection screens. Some are installed 14m below ground, and there is no theoretical limit to the depth of the shaft in which they can be installed. Bar spaces can be 25mm upwards, and 50mm is typical. They were designed to be installed on waterworks intakes for catching large material, but are very suitable for installation on deep sewers upstream of sewage works inlet pumping stations and upstream of fine screens for catching larger material.
- Trash screens for multiple intakes, where a travelling frame carries a raking machine to serve any number of screens over each intake opening.
- Front raked trash screens for single intakes, designed to remove floating material and large objects such as logs.
- Travelling band screens to remove smaller material from intake streams
We also make:
- Screw conveyors and compactors for screenings handling. These are generally shaftless but we can make them any pattern you would like.
- Travelling bridge systems for grit removal and rectangular sedimentation tanks. For grit removal we normally supply airlifts, air bubblers and scum skimmers.
- Non-metallic chain and flight scraper systems for rectangular sedimentation tanks and rectangular thickeners. These lightweight and very robust systems are very much less prone to wear than other systems. The one piece link design fits the same sprockets as American standards so we can replace others equipment and reduce maintenance.
- Circular tank bridges, scrapers and thickeners, and high rate filter distributors, all using our unique CenterDrive unit which is an engineering masterpiece
- Aeration diffusers fitted with membranes we have developed. These are cured using H2O2 not sulphur. They take longer to manufacture. These are the strongest and most flexible and the best you can buy for the high temperature conditions which are a problem in tropical countries.
- Coarse bubble diffusers designed for scum and grease removal, used in conjunction with chain and flight scum skimmers.
- DAF plants designed and built to match customer specific requirements
We design and fabricate equipment to suit your exact requirements. Although these are our main products, we do make other items to order. We are flexible and innovative, seeking to continuously develop our capabilities. If there is a product which you would like us to make for you, please ask and we will give your requirements detailed consideration.
Even though our equipment is very high quality, you will find it is not expensive.
Our Track Record
We have produced much equipment over the years with repeat orders from satisfied customers. In the last ten years we have produced:
- 60 WateRRake fine screens
- 16 WateRRake coarse screens
- 12 Mix&Move conveyor and compactor systems
- 38 sets of PlastiChain chain and flight scraper systems for rectangular clarifiers
- 6 sets of PlastiChain chain and flight scraper systems for rectangular DAF plants
- 10 sets of PlastiChain replacement chain involving many thousands of links
- 8 travelling bridge systems for grit or sedimentation tanks
- 40 CenterDrive units
- 18 bridge units with scrapers or thickeners for circular tanks
- Over 70,000 Dair diffusers to complete 148 orders
- 8 MicronBubble DAF plants
We have concentrated mainly on water and wastewater equipment, but over the years we have been involved in other environmental sectors. We have seen a prospect in turning undesired organic sludges into a high grade fertilizer. So, in 2004, with the support of DANIDA, we have participated in a Partnership Facility Program with Tim Envipro A/S, which is one of the leaders in Compost Machinery. Since then, we have been involved in the composting process and composting machinery. We will be offering a line of compost processing machines, including Trommel Screen, Shredder, Windrow Turner, and Manual Separation Line from Year 2007. We will continue to be creative.
Our Achievements
- 1993: Company established
- 1996: Built and installed equipment for over 20 WwTWs in Thailand
- 1997: Manufactured our first WaterRake Fine Screen
- 1998: First to manufacture driveheads with precision bearings – CenterDrive
- 2000: Supplied kit for largest Rectangular Clarifier in Thailand – PlastiChain
- 2001: Produced DAir membrane. Higher temperature tolerance and higher tensile strength than any competitor product
- 2003: First Thai wastewater company to achieve ISO 9001: 2000
- 2003: First Thai manufacturer to supply complete screening system to Bangkok Municipal Administration
Our People We have a team of forty, and whilst we will not include them all here, these are the principal technical people you may be involved with: |
