4L Soft Bag Sprayer with Variable Speed

The 4L Soft Bag Sprayer with Variable Speed from Crosstec is a practical electric backpack sprayer designed for precise application of pesticides, herbicides, fertilizers, and disinfectants. It supports stable pressure output with a high-quality soft-start pump and leak-proof hose system, making it suitable for both residential and light commercial use.

Crosstec has engineered this model for portability and convenience. After use, the soft bag structure can be folded and stored easily, making it an ideal space-saving solution for modern users.

Battery Performance & Smart Protection System

The sprayer is powered by a 10.8V 2.6Ah lithium battery, offering 90–150 minutes of continuous operation. A fast 1-hour charging system ensures minimal downtime, while the digital voltage display provides real-time battery monitoring.

Built-in protection prevents over-discharge below 10.8V, extending battery life and ensuring long-term reliability for professional users of the 4L Soft Bag Sprayer with Variable Speed.

Ergonomic & Durable Design

The sprayer features ergonomic shoulder straps and breathable back padding to reduce fatigue during long working hours. Its lightweight structure and balanced load distribution make it suitable for extended field operations.

Constructed from high-strength PVC and corrosion-resistant components, the 4L Soft Bag Sprayer with Variable Speed offers excellent durability under harsh agricultural and outdoor conditions.

Core Applications

This Crosstec sprayer is widely used in:

• Home gardening and lawn care
• Orchard and vineyard spraying
• Greenhouse crop protection
• Fertilization and pest control
• Disinfection and cleaning tasks
• Small farm and plantation maintenance

Thanks to its variable speed system, the 4L Soft Bag Sprayer with Variable Speed adapts easily to different liquid application requirements.

Product Advantages of Crosstec Sprayer Series

1. Smart Variable Speed Control

Crosstec integrates stepless speed adjustment to ensure precise flow control, reducing chemical waste and improving spray efficiency.

2. Constant Pressure Output System

The built-in pump maintains stable pressure for consistent atomization performance during operation.

3. Foldable Soft Bag Structure

Unlike rigid tank sprayers, this model folds easily after use, saving storage space and improving portability.

4. Quick Charging Lithium Battery

1-hour fast charging supports continuous work cycles, making it suitable for daily commercial use.

quick check valve

tank cap holder

Product Parameters

Why Choose Crosstec?

Crosstec is a professional manufacturer specializing in lithium battery sprayers and agricultural spraying equipment. With strong R&D capability and global OEM/ODM service support, Crosstec delivers high-performance solutions to international distributors and wholesalers.

• 50+ patented sprayer technologies
• Self-cleaning system innovation (US patent)
• Bluetooth and variable-speed technology pioneer
• Exported to 150+ countries worldwide
• 40000+ annual sprayer production capacity
• ISO9001, TUV, SGS certified manufacturing

R&D and Innovation Strength

Crosstec leads innovation in smart sprayer technology, including Bluetooth control systems, self-cleaning pumps, and variable-speed spraying solutions. These advancements make the 4L Soft Bag Sprayer with Variable Speed more efficient, durable, and user-friendly compared to traditional sprayers.