STAGE 01 · ≥99% PM
Particulate Control
DOC + DPF · RECD
Oxidation catalysts, wall-flow particulate filters and retrofit kits that clean up new and installed diesel engines alike.
Full cataloguePrecision Engineering for a Regulated World
STAGE 02 · CAN J1939 · IP67
Controls & Dosing
ATCU · Urea Pump · Injector
Aftertreatment control units, urea pumps, injectors and the oxidation booster that keep every catalyst in its working window.
Full catalogueSTAGE 03 · ≥95% NOx
NOx Reduction
Urea SCR · Urea-Free SCR · Compact SCR
Urea and urea-free selective catalytic reduction platforms from 15 kW to 800 kW, with closed-loop dosing and NOx sensor feedback.
Full catalogue▪ What we do
Black smoke in. Clean air out.
Engine exhaust carries soot, nitrogen oxides, carbon monoxide and unburnt hydrocarbons. Each Maxmoc stage removes one of them, so what leaves the stack is nitrogen, water vapour and carbon dioxide.
Engine out
SootNOxCO · HC
Stack out
N₂ + H₂OCO₂
DOC · Oxidation catalyst
2CO + O₂ → 2CO₂ · HC + O₂ → CO₂ + H₂O
DPF · Particulate filter
Soot trapped · C + O₂ → CO₂
AUS 32 · Urea dosing
Urea + water → ammonia + CO₂
SCR + ASC · NOx reduction
4NO + 4NH₃ + O₂ → 4N₂ + 6H₂O
Tailpipe NOx
24
from ~900 ppm engine-out
Tailpipe PM
0.9
from ~90 mg/m³ engine-out
Illustrative values for a urea SCR system at rated load. Actual figures depend on the engine and duty cycle.
Every system we build is sized to its engine map, proven on a dynamometer and traceable from substrate to the day it ships.
95%
10000 hrs
▪ The Maxmoc film
Cleaner exhaust, engineered end to end
Two and a half minutes on one speck of soot: how a Maxmoc system catches it before it reaches anyone, and how we size, build, prove and support every system for CPCB IV+, Stage V and Euro VI engines.
2:32 · Chapters
▪ Blueprint library
Every product, line by line.
Live wireframe blueprints of all sixteen Maxmoc products. Drag to turn, pull them apart, cut a section, then open any product in the 3D Explorer.
▪ Follow a unit down the line
Six bays from engine map to field
Every Maxmoc system moves through the same six stations at our unit in the Madras Export Processing Zone, Chennai.
Walk the live factory in 3D
BAY 0101 · Engineering · Packaging
Application engineering
Exhaust routing, mixing length and backpressure engineered around each OEM chassis.
- ▸Sizing to the engine map
- ▸Mixing length and backpressure
- ▸Packaging around the OEM chassis
BAY 0202 · Chemistry · Substrates
Catalyst & substrate
Oxidation, filtration and reduction catalysts chosen for the duty cycle and the exhaust temperature window.
- ▸Oxidation catalyst for low light-off
- ▸Wall-flow particulate filter
- ▸SCR with ammonia-slip catalyst
BAY 0303 · Plant · MEPZ Chennai
Canning & welding
Substrate canning, TIG welding and leak testing at the Madras Export Processing Zone unit.
- ▸DOC, DPF and SCR canning
- ▸Flow, leak and backpressure testing on every unit
- ▸Serial-number traceability from substrate to dispatch
BAY 0404 · Electronics · Software
Dosing & controls
Hardware-in-the-loop rigs replay thousands of duty cycles against the ATCU before release.
- ▸Closed-loop urea and urea-less dosing calibration
- ▸CAN J1939 integration with engine ECUs
- ▸Hardware-in-the-loop validation before release
BAY 0505 · Testing · Engine dynamometer
Emission testing
Dynamometer runs with gas analysers verify NOx, PM, CO and HC conversion on every engine family.
- ▸CPCB IV+ and Stage V test cycles
- ▸NOx, PM, CO, HC and NH₃-slip measurement
- ▸Durability testing
BAY 0606 · Compliance · Service
Certification & field support
Reports for certification agencies, installation by Maxmoc engineers and verification once the system is running.
- ▸Test reports for certification agencies
- ▸On-site installation and emission verification
- ▸Online monitoring after handover
▪ Partners & validation
Global technology, proven in our own test cell
- CPCB IV+
- Stage V
- Euro VI
- ISO 9001
- ICAT approved
- Made in India
North America
Fuel systems partner
United States
Fuel injection systems and components for diesel and gasoline engines.
Europe
Diesel injection partner
Czech Republic
Diesel fuel injection pumps, injectors and nozzles.
Europe
Emission technology partner
Germany
Exhaust aftertreatment systems that cut emissions from combustion engines.
Testing · Engine dynamometer
Maxmoc emission test cell
MEPZ, Chennai, India
Dynamometer runs with gas analysers verify NOx, PM, CO and HC conversion on every engine family.
▸ NOx · PM · CO · HC · NH₃ slip
▪ Genset fitment
Watch an RECD go on your genset
Pick a genset from 15 to 1500 kVA or a ship engine up to 8 MW, choose any Maxmoc system, see it fitted in 3D and follow live emission readings before and after.
Try the genset fit15 kVA preview
Without RECDPM 132.0 mg/Nm³
Particulates
0 %
CO
0 %
Smoke
0 %
Compliant before it ever ships
CPCB IV+
Stage V
Euro VI
ISO 9001
Share the engine. We will engineer the aftertreatment.
Engine application matcher
Find your starting architecture
Pick the power band, the machine and the norm. We suggest a Maxmoc system and pre-fill the request for our engineers.
Recommended · Genset · 19–75 kW · CPCB IV+
- ≥85% @ rated power
Urea-Free SCR System
Urea-free SCR, 19–75 kW
- Up to 99%
Retrofit Emission Control Kit
Retrofit kit for installed DG sets
- CAN J1939, PWM, analog
Aftertreatment Control Unit
Closed-loop dosing and OBD
- ΔP, pressure, temperature, RPM
Online Emission Monitoring
Online monitoring
A starting architecture. Final sizing follows your engine map and duty cycle.