Xi'an Qintai Automotive Emission Technology Co. Ltd brings you precision-engineered urea injection nozzle solutions designed for superior SCR system performance. Established in 2001, we've grown into China's No. 1 market leader with over 20 years of expertise. Our nozzles deliver precise AdBlue® atomization at 5-9 bar operating pressure, featuring integrated heating elements to prevent crystallization down to -40°C. With annual production capacity exceeding one million SCR components, 58 invention patents, and rigorous IATF 16949 quality control, we serve core clients including Weichai Power, Yuchai Power, and Quanchai Power. Our 86-strong R&D team ensures each product meets exact milligram-level dosing accuracy for optimal NOx reduction.

| Parameter | Cartier | Bosch | 2.2 |
|---|---|---|---|
| Injector resistance | 12Ω±0.6Ω | 12Ω±0.6Ω | 12Ω±0.6Ω |
| Voltage | 12/24V | 12/24V | 12/24V |
| Insulation resistance | >3MΩ | >3MΩ | >3MΩ |
| Working frequency | 1-50HZ | 1-50HZ | 1-50HZ |
| Number of spray holes | One | Three | Six |
| Orifice diameter | 0.315mm | 0.19mm | 0.14mm |
| Spray angle (α) | 25°±5° | 25°±5° | 25°±5° |
You advantage from our committed 86-engineer R&D group that persistently progresses spout execution. We center on atomization consistency, warm administration, and long-term unwavering quality. Each plan cycle is tried against real-world deplete conditions.
Our advancement prepare includes broad recreation and approval. You get spouts that adjust to shifting motor loads and temperature extremes without compromising dosing accuracy.
As China's No. 1 OEM provider, we accomplice with major diesel motor producers across the nation. Your gear offers innovation with top-tier commercial vehicles and mechanical apparatus. This showcase authority reflects our commitment to quality and performance.
We supply over one million SCR components yearly. Your generation benefits from our demonstrated fabricating versatility and steady quality delivery.
You pick up get to to full-cycle item advancement from introductory concept to mass generation. Our OEM administrations incorporate plan customization, model improvement, and generation optimization. We adjust our item to your particular deplete framework requirements.
Whether you require altered splash designs, specialized mounting setups, or one of a kind control interfacing, we provide arrangements that fit your application perfectly.
Your interesting outflow control challenges merit custom-made arrangements. We customize spout details counting stream rates, splash points, and mounting measurements. Our designing group works straightforwardly with you to coordinate spout execution to your deplete chemistry and temperature profiles.
From rural apparatus to heavy-duty trucks, we've customized spouts for different applications. You get arrangements that maximize your SCR framework proficiency.

Your urea injection nozzle undergoes comprehensive quality verification before shipment. We employ laser diffraction testing to verify spray pattern consistency and droplet distribution. Each nozzle must meet precise cone angle specifications.
Dynamic flow rate testing ensures accurate AdBlue® delivery across all duty cycles. We verify milligram-level dosing accuracy under simulated real-world conditions.
We subject every batch to thermal shock cycling between -40°C and 150°C. This replicates the temperature extremes your nozzles will encounter during operation. High-pressure helium leak testing guarantees zero-leakage performance.
Salt spray corrosion testing validates housing integrity and connector durability. You receive components ready for harsh operational environments.
Our IATF 16949 and ISO9001 certifications demonstrate systematic quality control. We also hold CMC, Ex, UL, CE, REACH, and RoHS certifications. Your purchases meet international regulatory standards.

We proudly collaborate with China's leading diesel engine manufacturers including Weichai Power, Yuchai Power, and Quanchai Power. These partnerships validate our technical capabilities and production reliability.
Our customer base spans commercial vehicle manufacturers, industrial equipment producers, and aftermarket distributors. You join a trusted network of emission control professionals.

Qintai actively participates in international automotive and emission control exhibitions. We showcase our latest SCR technologies at industry events worldwide. Our global presence extends through distribution partners across multiple continents.
We understand regional emission regulations and adapt our products accordingly. Your market-specific compliance needs are supported by our regulatory expertise.

Our strategic inventory management ensures rapid order fulfillment. We maintain ready stock of standard configurations for immediate shipment. You benefit from shortened lead times and reliable delivery schedules.
Our logistics partners provide efficient domestic and international shipping. We track every shipment to ensure your components arrive safely and on time.

Each nozzle receives protective packaging designed for transportation safety. We use anti-static materials and shock-absorbing inserts to prevent damage during transit.
Bulk orders are palletized with moisture protection. You receive products in perfect condition ready for installation or integration.

Why does the urea spout require heating?
Heating anticipates AdBlue® crystallization that happens underneath -11°C (12°F). Our coordinates warming components keep up ideal working temperature, guaranteeing reliable shower designs amid cold begins. This ensures your SCR framework from blockages and keeps up emanation compliance year-round.
What is the ordinary weight run for urea nozzles?
Our spouts work between 5 and 9 bar, depending on your particular framework prerequisites. This weight run guarantees successful atomization and appropriate AdBlue® conveyance all through the deplete stream. You accomplish ideal NOx diminishment productivity with exact weight management.
How are urea spouts controlled?
The Dosing Control Unit (DCU) or ECU oversees spout operation based on debilitate temperature, NOx sensor information, and motor stack. Your framework naturally alters AdBlue® infusion amount to optimize outflow decrease. This shrewdly control maximizes productivity whereas minimizing liquid consumption.
How is a urea spout cleaned?
Modern frameworks incorporate self-cleaning capacities that flush the spout with warmed liquid. Manual cleaning with specialized hardware clears crystallized stores when required. If cleaning doesn't reestablish execution, substitution guarantees proceeded framework reliability.
What quality control measures guarantee spout reliability?
We perform five basic reviews: splash design testing with laser diffraction, energetic stream rate confirmation, high-pressure spill testing, warm stun cycling, and salt splash erosion testing. These conventions adjusted with IATF 16949 benchmarks ensure long-term performance.
Can spouts be customized for particular applications?
Absolutely. We customize shower points, stream rates, mounting arrangements, and control interfacing. Our building group collaborates with you to coordinate spout determinations to your debilitate framework prerequisites and operational conditions.
Ready to enhance your SCR system performance with precision-engineered urea injection nozzles? Reach out to us at info@qt-sensor.com for product information, custom solutions, or partnership opportunities.
Our customers’ satisfaction speaks for our quality — contact us to experience the same reliable service.