Mechanical Screen
Captures solids and debris before wastewater enters the system. Models range from non-electric to fully automatic to suit each plant’s volume and wastewater characteristics.
Custom Manufacturing & Import Mechanical Screens / DAF Grease Traps for Industry
Start wastewater treatment right with a Hydrosys Pretreatment system — mechanical screens and grease traps that protect your equipment and reduce the load on the main treatment system.
Solid waste and
grease wear out
systems early
Industrial wastewater often carries heavy loads of solid waste, suspended solids, and grease. Sent straight to treatment, they add load, raise costs, and risk clogging.
Hydrosys designs, manufactures, and imports mechanical screens and grease traps that protect the main treatment system, cut clogging at the source, and extend equipment life.
Our Systems Mechanical Screens & Grease Traps
Mechanical Screens & Grease Traps
the First Line of Defence for Your Treatment System
Mechanical screens and grease traps remove oil, solids, and contaminants from wastewater before it reaches the main treatment system — reducing the load on that system and protecting the equipment from damage.
Grease Trap
Ultra-fine micro-bubble technology removes up to 95% of grease and 90% of suspended solids before water reaches the main treatment system.
Our Solutions 6 Mechanical Screen &
6 Mechanical Screen &
Grease Trap Solutions
Mechanical screens and grease traps designed per industry. 6 solutions built around wastewater characteristics, so you can choose what fits.
01
Mechanical Screen
(Static Screen)
Captures debris and solids before they enter the system, protecting pumps and valves, reducing clogging, and extending equipment life.
02
Rotary-Drum Fine Screen
(Rotary Screen)
Removes solids that build up on the screen, reducing clogging and keeping wastewater flowing steadily.
03
Internal-Feed Rotary Screen
(Internal Screen)
Separates solids with no odor nuisance, continuously and with automatic self-cleaning.
04
Fine Screen
An automatic screen that delivers fine screening in a single step. Continuous, quiet, and easy to maintain.
05
Micro Bubble Pump
A compact micro-bubble pump needing no auxiliary equipment, mixing air into the water in one pump to float solids out immediately.
06
Grease Trap
(DAF)
Removes up to 95% of grease in a single step and up to 90% of solids, delivering cleaner wastewater to the biological stage.
Industries & Applications Applications across every
Applications across every
kind of wastewater
Wastewater varies by industry, but separating solids, grease, and oil at the source is the foundation of effective treatment.
Get in Touch
High-grease wastewater
e.g. food and beverage, vegetable oil, and dairy plants, hotels, and food courts
Chemical-laden wastewater
e.g. cosmetics, chemical, processed food, and textile plants
Solids in the wastewater
e.g. plants with debris such as branches, gloves, or cotton wool
One-Stop Service From Consultation
From Consultation
to After-Sales Service
Hydrosys covers design through after-sales, so your system runs efficiently, meets standards, and repays your investment.
Consultation
Wastewater analysis and system design by specialist engineers.
System Manufacturing
Custom-built: materials, sizing, and functions matched to your wastewater.
Import & Distribution
World-class equipment imported and delivered straight to you.
After-Sales Service
Ongoing care and maintenance by our expert technicians.
Why Hydrosys
What Sets Hydrosys Apart
From analysis and technology selection to installation and after-sales service, we make sludge management simpler, cheaper, and better performing.
Analysis before equipment selection
We match equipment to each plant’s wastewater for maximum efficiency without over-investing.
Separates both solids and grease
Handles a wide range of contaminants, from solids to grease and oil.
Designed around your space and process
Size, format, and technology are chosen to fit your space, flow rate, and conditions.
Retrofit-ready, no rebuild needed
Integrates with your existing system, avoiding a full rebuild and easing expansion.
Our ProductsPrimary Treatment with
Primary Treatment with
Screens and Grease Traps
Equipment for preliminary & primary wastewater treatment, from mechanical screens to grease traps — flexibly selected and engineered around each plant's wastewater characteristics and requirements.
PRE TREATMENT
View DetailsStatic Screen
The Static Screen / Wedge Wire Screen is used for preliminary wastewater treatment, using gravity to separate solids from wastewater without electricity and with no moving parts. It is made of SUS304 stainless steel wedge wire screen, with selectable slot openings of 0.25–3.0 mm, supporting a maximum flow rate of approximately 270 m³/hr. It helps reduce TSS and protects pumps and valves in the treatment system.
PRE TREATMENT
View DetailsRotary Screen
The Rotary Screen (External Fed Rotary Drum Screen) is a rotating drum screen for continuous and automatic separation of fine solids from wastewater. It uses a stainless steel wedge wire screen with openings of 0.25–3.0 mm, supports wastewater with high oil or grease content, and comes with a scraper blade and water spray system to help reduce clogging.
PRE TREATMENT
View DetailsInternal Drum Screen
The Internal Fed Rotary Drum Screen is a high-efficiency drum filter in which wastewater is fed from inside the drum and separated to the outside, providing gentle flow that reduces the break-up of flocs and fragile solids. The screening basket is inside and the structure is entirely stainless steel, designed with a tightly sealed cover so odour can be controlled. It is suitable for wastewater containing soft or fibrous solids.
PRE TREATMENT
View DetailsBar Screen
The Bar Screen / Mechanical Bar Screen is a screening machine for capturing large solids in the first stage of a wastewater treatment system, with a rake unit that sweeps waste off the screen bars automatically and continuously. Bar spacing can be selected from 5–50 mm, supporting channel widths of 400–3,000 mm. It is made of coated steel, galvanised steel, or SUS304 stainless steel, helping prevent clogging of pumps and sump pits while reducing labour in waste handling.
PRE TREATMENT
View DetailsScrew Screen
The Screw Screen / Spiral Screen combines screening, conveying, dewatering and solids discharge in a single machine. It operates automatically in an enclosed system, helping reduce the volume and moisture of the waste as well as odour and contact. It is suitable for use as a preliminary screening device in wastewater treatment systems.
DAF
View DetailsRectangular DAF
Rectangular / Horizontal DAF is a dissolved air flotation system for primary wastewater treatment, helping separate FOG and SS and reduce BOD/COD with microbubbles that carry the sludge up to the water surface. It can reduce FOG/SS by more than 90%, BOD by more than 30% and COD by more than 20%, supporting flow rates of 1–1,000 m³/hr, and integrates the Coagulation–Flocculation system and the bubble generation unit into a single platform. The structure can be selected as either FRP-coated steel or SUS304/316.
DAF
View DetailsSuperficial DAF
Superficial DAF, a dissolved air flotation system designed with a shallow tank that uses about 40% less installation area than conventional systems, focusing on separating floated sludge at the water surface. Suitable for limited spaces and for adding to existing systems, complete with a built-in micro bubble generation system and automatic sludge scraper blades. It removes more than 90% of FOG and SS and efficiently reduces BOD/COD.
DAF ACCESSORIES
View DetailsMicro Bubble Pump
Micro Bubble Pump, an innovative pump that draws in and dissolves gas into water within the pump itself at the same time in a single unit, delivering a gas dissolution efficiency of up to 90–100%. It can generate Nano-Micro Bubbles stably and continuously, making it suitable for use in DAF (Dissolved Air Flotation) wastewater treatment systems.
Free Wastewater Testing
Plus Backup Equipment Rental
Send a wastewater sample for free lab testing and we will match the right equipment. Rental units keep your system running during maintenance.
Our Process Ordering a Mechanical Screen
Ordering a Mechanical Screen
or Grease Trap
We manage every step, from wastewater analysis and system design to production, installation, and commissioning by specialist engineers.
01
Consult & Analyze
Tell us your on-site problem for an initial consultation and system assessment from our engineers.
02
Free Wastewater Lab Testing
We analyze your plant’s wastewater in the lab to select the most suitable treatment method.
03
System Design & Spec Selection
We design the system and select equipment to match your wastewater characteristics.
04
Quotation
We calculate costs and prepare a quotation with full specifications for your review.
05
Contract & Production
Once design and price are agreed, sign the contract and place the order; production then begins.
06
Delivery
When production is complete, we deliver the machinery to your site.
07
After-Sales Care
Covered throughout the warranty period, typically one year (or as stated in the contract). If anything goes wrong, our team is ready to help.
Find Your Solution Need the Right Solution
Need the Right Solution
for Your Plant?
Hydrosys designs, manufactures, and supplies end-to-end water treatment systems for a wide range of wastewater challenges, keeping water management cost-effective.
Contaminated, hard-to-treat wastewater
For wastewater containing chemicals or contaminants that cannot be discharged directly.
Existing system fails effluent standards
If BOD, COD, or TSS levels still exceed the limits, an advanced treatment system can boost performance.
Cut water costs and reuse your water
Turn effluent back into a resource with a Water Reuse & Recycling system.
Cut the cost of treating the same water twice
Avoid the expense of ill-suited equipment with a treatment system that handles high volumes right from the source.
FAQ
Still Have Questions? Ask Us Common Questions
About our wastewater treatment
systems and related equipment
How does this differ from a conventional grease trap?
DAF removes 85–95% of grease and handles far larger volumes than a conventional grease trap, which manages only around 40–60%.
If the wastewater only carries solids, is DAF necessary?
No. If solids are the main issue — vegetable scraps, bones, cotton wool, branches — a screen alone (static or rotary) is enough.
How much space does a DAF system need?
Not much. It is a compact micro-bubble system that takes a fraction of the space of older designs, and it can be laid out to suit your site.
Will this alone bring water up to standard?
No — it is not the final stage. It does cut COD/BOD by 30–50% and remove grease and solids, so the main treatment system works far more easily.
Does a rotary screen need constant supervision?
No. It cleans itself automatically; you only need routine inspections.
