DV series screw compressor, 1:1 direct drive, variable-speed controlled, 18,5 kW drive power, 2,6/2,9 m³/min flow rate, 8/10 bar max. operating pressure
The Comprag DV18.5 is a variable-speed screw compressor with 18.5 kW and a robust 1:1 direct drive. Depending on the configuration, it delivers up to 2.9 m³/min at 8 or 10 bar. Stepless adjustment of the motor speed ensures demand-based and economical compressed-air generation. Ideal for businesses with regularly fluctuating air consumption.
Tax-free EU delivery after VAT ID verification at checkout
Free delivery within Germany on orders over €99
| Item no.
11300045
DV series screw compressor, 1:1 direct drive, variable-speed controlled, 18,5 kW drive power, 2,6/2,9 m³/min flow rate, 8/10 bar max. operating pressure - 8 / 2.90 is in stock and will be shipped as soon as it is available again
Questions & Help
Questions & Help
Do you have questions about one of our products or would you like expert advice on selecting the right solution for your application?
No problem—give us a call! Tel. +49 (0) 2551 5030
Send us an email! shop@strahltechnik-express.de
Use our online chat or the contact form
Leasing & Hire Purchase
Leasing & Hire Purchase
We offer the financing options leasing and hire purchase exclusively to businesses, commercial operators and self-employed persons for selected products with a net order value of €1,000 or more. Below you will find the key differences between the two forms of financing.
Leasing
With leasing, the product is made available to the lessee for use in return for regular lease payments. The asset is recognized on the lessor’s balance sheet. Lease payments can generally be claimed as operating expenses for tax purposes. These are gross payments, and VAT is charged throughout the entire term. Once the agreed minimum lease term has expired, purchasing the product is generally possible.
Hire purchase
In economic terms, hire purchase is equivalent to an installment purchase. The product is capitalized on the hire purchaser’s balance sheet and depreciated in accordance with the official depreciation tables. Ownership of the asset transfers to the hire purchaser upon payment of the final hire-purchase installment. VAT must be paid in full with the first hire-purchase installment (a pass-through item).
Shipping & Delivery
Shipping & Delivery
We ship our goods either via parcel service or via a freight forwarding company, depending on their size, weight and characteristics. We select the shipping method at our reasonable discretion.
The delivery times stated in the online shop are non-binding estimates, unless a binding delivery date has been expressly agreed in writing. They are based on the information available from our manufacturers, suppliers and logistics partners at the time the order is placed.
A large proportion of the products offered are shipped directly from the manufacturer or from external central warehouses (direct shipment). As a result, delivery times may differ from the stated guidelines. In particular, material shortages, production delays, supply bottlenecks, force majeure or other circumstances for which we are not responsible may result in delivery delays.
Disclaimer:
We accept no liability for delivery delays resulting from circumstances beyond our control. This applies in particular to delays caused by manufacturers, upstream suppliers, transport companies or other third parties. Liability for any resulting damages, in particular indirect damages, consequential damages or loss of profit, is excluded to the extent permitted by law.
Partial deliveries are permitted insofar as they are reasonable for the customer. They will not result in additional shipping costs unless otherwise agreed.
The exact delivery time for an item can be provided individually on request, either before or after placing the order.
Please contact us by telephone at +49 (0)2551 5030 or by email at shipping@strahltechnik-express.de.
If significant delivery delays occur, we will inform the customer without undue delay. Mandatory statutory rights of the customer remain unaffected.
| Item no.
11300045
DV series screw compressor, 1:1 direct drive, variable-speed controlled, 18,5 kW drive power, 2,6/2,9 m³/min flow rate, 8/10 bar max. operating pressure - 8 / 2.90 is in stock and will be shipped as soon as it is available again
Comprag DV18 – variable-speed screw compressor with 18.5 kW, 1:1 direct drive and demand-based compressed air generation
The Comprag DV18 is designed for businesses where compressed air demand is not constant – and this is exactly where the DV series demonstrates its greatest strength. The integrated variable frequency drive continuously adjusts the compressor speed to actual consumption. As a result, the compressor delivers only the amount of air currently required, maintains stable network pressure and reduces unnecessary idle and switching losses.
The generously sized screw air end is connected directly to the electric motor via a flexible coupling. The 1:1 direct drive requires no belts or transmission stages, reduces the number of moving wear parts and transfers the motor power directly to the compressor. The result is a powerful, easy-to-maintain and economical compressed air supply for demanding continuous operation.
Your benefits at a glance
✅ Speed control via variable frequency drive – performance follows the actual compressed air demand
✅ 1:1 direct drive without belt losses and without regular retensioning
✅ Delivery volume of up to 2.9 m³/min – depending on the selected pressure variant
✅ Constant operating pressure with reduced load/unload cycling
✅ v-Log microprocessor control with operating data, group control and MODBUS connectivity
✅ Effective air-oil separation with a residual oil content of no more than 3 mg/m³ according to the manufacturer
✅ Sound-insulated enclosure – sound pressure level approx. 70 dB(A)
✅ Maintenance-relevant filters and separators are easily accessible
Technical data
| Model | Article number | Control range (bar) | Delivery volume (m³/min) | Voltage / frequency | Sound pressure | Compressed air connection |
|---|---|---|---|---|---|---|
| DV-1808 | 11300045 | 5–8 bar | 2.90 m³/min | 3 / 380–420 V / 50 Hz | 70 dB(A) | 3/4 inch |
| DV-1810 | 11300046 | 5–10 bar | 2.60 m³/min | 3 / 380–420 V / 50 Hz | 70 dB(A) | 3/4 inch |
Delivery volumes are specified in accordance with ISO 1217 and sound pressure levels in accordance with ISO 3744.
Dimensions and weight
| Model | Length (mm) | Depth (mm) | Height (mm) | Weight (kg) |
|---|---|---|---|---|
| DV18 | 1,300 mm | 940 mm | 1,280 mm | 480 kg |
Variable speed control – compressed air according to actual demand
A pressure sensor monitors the current system pressure. If consumption changes, the controller automatically adjusts the motor speed via the variable frequency drive. Instead of constantly switching between full load and idle, the DV18 operates according to demand within its control range. The variable frequency drive also reduces starting currents and relieves the motor and electrical components.
The key benefits of variable frequency control:
✔ The motor speed and delivered air volume follow the actual compressed-air demand.
✔ Idle times and frequent load changes are reduced.
✔ The operating pressure remains more stable even when demand fluctuates.
✔ Smooth start-up reduces electrical peak currents and protects the components.
✔ This can save energy, especially with changing load profiles.
1:1 direct drive – efficient, robust and low-maintenance
The motor and screw block are directly connected by a flexible coupling. This eliminates belt slippage, belt replacement and losses from transmission stages. Fewer moving parts mean less wear, direct power transmission and high operational reliability.
The key benefits of the 1:1 direct drive:
✔ Direct power transmission from the motor to the screw block via a flexible coupling.
✔ No belts, no belt tensioning and no belt wear.
✔ Lower transmission losses and therefore high efficiency.
✔ Less maintenance and lower ongoing service costs.
✔ Robust, smooth-running continuous operation with high operational reliability.
Design and high-quality components
Inside, an energy-efficient screw block, a reliable electric motor with thermal motor protection, an effective oil separation system and the professional v-Log controller work together. Internal pressure losses are kept low by design, while the air-oil separation limits the residual oil content at the outlet to a maximum of 3 mg/m³ according to the manufacturer.
Key components at a glance:
✔ Screw block: efficiently and continuously compresses the intake air.
✔ Electric motor: directly drives the compressor via the flexible coupling.
✔ Intake filter: protects the compressor from dust and particles in the ambient air.
✔ Air-oil receiver and separation system: separate the oil-air mixture and reduce residual oil content.
✔ Oil filter and thermostatic valve: ensure lubrication and stable operating temperatures.
✔ Cooler and fan: reliably dissipate heat from the oil and compressed-air circuits.
✔ v-Log controller: monitors operating states, messages and service intervals.
v-Log control and networking
The v-Log controller monitors automatic operation and provides the operator with key process values such as operating pressure, the temperature of the air-oil mixture and operating times. Several compatible compressors can be coordinated via the group control system. For integration into a higher-level control system or control room, the controller supports MODBUS RTU.
Compressed air quality and treatment
The compressor generates oil-lubricated compressed air. According to the Comprag catalogue, compressed air up to Class 4:4:4 in accordance with ISO 8573-1:2010 is possible in a suitably designed system. The quality class actually achieved depends on the downstream treatment. For dry compressed air filtered appropriately for the application, an air receiver, refrigerated dryer or desiccant dryer, as well as suitable pre-filters, fine filters and activated-carbon filters, should be provided depending on the application.
Installation, operation and maintenance
The compressor requires a level surface suitable for its total weight, as well as adequate ventilation and exhaust air circulation. According to the operating manual, at least 1.5 m of clearance must be provided around the system from walls and adjacent compressors. Hot cooling air must be discharged without obstruction; electrical installation, protection and commissioning must be carried out by qualified professionals.
The maintenance schedule includes daily checks and staged maintenance at 500, 2,000, 4,000 and 6,000 operating hours. The operating manual, actual operating conditions and the controller’s maintenance indicator are always authoritative. Original filters, separators, oil and maintenance kits maintain operational safety and performance.
Typical applications
The Comprag DV18 is particularly suitable for industrial and commercial compressed-air networks with fluctuating consumption—for example in production, metalworking, CNC manufacturing, assembly, painting, blasting technology, packaging, workshops and automated systems. With a constant base-load requirement, it can also be combined with other compressors to form an energy-optimized station.
Frequently asked questions
Why is the DV series variable-speed controlled?
So that the delivered volume automatically follows the current compressed-air consumption. This reduces idle times, keeps the mains pressure stable and can significantly lower energy costs.
What does 1:1 direct drive mean?
The electric motor transfers its power directly to the screw block via a flexible coupling. There is no belt drive or additional gear stage.
Can the DV18 be integrated into a control room?
Yes. The v-Log controller supports MODBUS RTU and also enables group control of multiple compatible compressors.
Is a refrigerated dryer included?
No. The dryer, air receiver and filters are designed separately according to the required compressed-air quality.
Which version is the right one?
The 5–8-bar version delivers the higher air volume. The 5–10-bar version is intended for applications with higher mains pressure. The decisive factors are actual consumption, the required minimum pressure and sufficient performance reserve.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details and do not have access to your credit card information.
In addition, mollie offers you many other payment methods at checkout!
