Honeycomb Substrates Catalyst Coating and Catalytic Converters
Deferry makes the substrate, coats the catalyst and builds the finished converter for vehicle and industrial exhaust after-treatment. One supplier from the ceramic or metallic monolith through to the welded direct-fit part.
Since 2012
Founded in Nanning by PRT
150
People, 40% college educated
ISO 9001 / 14001
Certified since 2015
104
Products in the catalogue
What We Make and Who We Serve
Nanning Deferry Environment Protection and Energy Conservation Co., Ltd is a professional designer and manufacturer of exhaust after-treatment systems for vehicles and industrial environments. We were founded by PRT and established in 2012, and by constantly introducing technology and talent we grew into an industry leader in China.
Our core products are the manufacture and sale of various honeycomb substrates for vehicle exhaust purification and industrial exhaust purification devices. We also have our own catalyst coating technology and production equipment, so we can supply catalysts and converters for our customers.
Our products go to converter manufacturers, engine builders, exhaust system assemblers and aftermarket distributors in China, Europe, America and the Middle East.
Product Categories
Nine categories covering the three stages of an after-treatment part: the bare honeycomb monolith, the washcoat and precious metal catalyst applied to it, and the canned converter ready to fit.
Universal Catalytic Converter
1 product
Gasoline OEM Catalytic Converter
18 products · 2 groups
Diesel OEM Catalytic Converter
72 products · 17 groups
Diesel Engine System Honeycomb Substrate
3 products · 3 groups
Gasoline Engine System Honeycomb Substrate
2 products · 2 groups
Industrial Emission System Honeycomb Substrate
2 products · 2 groups
Catalyst Coating for Diesel Engine
3 products · 3 groups
Three-way Catalyst Coating for Gasline Engine
2 products · 2 groups
Catalyst Coating for Industrial Emission System
1 product · 1 group
The Problem We Solve
Engine and industrial exhaust has to meet a legal emission limit without costing back pressure, fuel or service life. Each of our three product lines takes on one part of that job.
Line 1
Honeycomb Substrate
- Substrate for gasoline engines: ceramic substrate and metallic substrate.
- Substrate for diesel engines: DPF substrate and DOC substrate.
- Substrate for industrial emission: SCR substrate and VOC substrate.
Line 2
Catalyst Coating
- Three-way catalysts for the automobile industry.
- Catalytic coated particulate filters (CDPF).
- Diesel oxidation catalysts (DOC).
- Selective catalytic reduction (SCR) catalysts.
- Volatile organic compounds (VOC) catalysts.
Line 3
Catalytic Converter
- Universal catalytic converters.
- OEM design three-way catalytic converters.
- Diesel catalytic converters.
- Generator emission catalytic converters.
Featured Products
The substrates and coated catalysts most often specified by converter builders.
Metallic Substrate
Honeycomb Metallic Substrate
Honeycomb Ceramic Substrate
Cordierite DPF substrate
diesel particulate filters
SiC DPF substrate
Silicon Carbide Diesel particulate filter
Three-way Metallic Catalyst
Three-way Ceramic Catalyst
ceramic substrate catalyst
Catalysed DPF
Catalysed diesel particulate filters
Universal Catalytic Converter
universal aftermarket replacement catalytic converters
Why Customers Choose Deferry
Substrate, coating and canning under one roof
We extrude or roll the monolith, coat it, and build the converter, so one supplier is accountable for the whole part.
Sizes designed to your drawing
Diameter, length and cell density on most substrate lines are set to customer requirement, including large diesel truck sizes.
Emission targets from Euro II upward
Product sheets cover EPA, CARB, OBD and Euro II to Euro V, with large metallic substrate for Euro V and Euro VI diesel.
A laboratory that works with universities
Our lab serves the production line and R&D, and also supports universities and research centres working on catalysts.
Where Our Parts Are Used
The applications named on our product data sheets, on-road and off-road.
On-road passenger, medium and heavy-duty vehicles
Substrates, coated catalysts and direct-fit converters for cars, vans, buses and trucks.
Stationary engines
Emission control for engines running in fixed installations.
Power generation
After-treatment for generator sets and gen-set emission systems.
Dust control
Particulate filtration where exhaust dust has to be captured.
Mining equipment
Diesel particulate filtration for equipment working underground and on site.
Construction
Off-road construction machinery running diesel engines.
Marine
Diesel exhaust after-treatment for marine engines.
Material handling
Forklifts and other handling equipment operating in enclosed spaces.
Diesel locomotive
Particulate filtration for rail diesel traction.
Industrial emission
VOC substrates and catalysts, SCR catalysts and heat accumulation substances for industrial exhaust purification devices.
Frequently Asked Questions
What does Deferry actually manufacture?
Do you sell bare substrate without coating?
What sizes are available?
Is Deferry a manufacturer or a trading company?
Which quality certificates does Deferry hold?
Which markets does Deferry supply?
How do I get technical parameters or a quotation?
Tell Us the Size the Standard and the Volume
Send the dimensions, cell density and emission standard you need, or the OE number you are matching. We will come back with specification and price.