Industrial Screw Compressors

The industry demands an air compressor that never stops, ever.

From continuous production lines to automation processes with multiple simultaneous points of use, the screw compressor is the go-to equipment wherever stable, quiet, and uninterrupted compressed air is needed.
At Jender, we design and manufacture the JSC series at our plant in Alicante, offering 25 models ranging from 3 to 315 kW, all equipped with a frequency converter as standard across the entire range. If you’d like to understand how this technology works from the inside first, we explain it in detail on our blog. Here, we’ll get down to the practical details: which model your installation needs.
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Manufactured in Spain for continuous production

The backbone of industry.

Jender screw compressors stand out for their reliability, efficiency, and ease of maintenance, featuring variable-frequency drive control across the entire product line and either belt-driven or direct-drive configurations depending on the series.
We cover everything from the 3 kW needed for a gas station or a paint shop to the 315 kW required for a plant with multiple production lines operating simultaneously. Everything comes from our factory in Alicante, so the equipment you install and the technical service that supports it are provided by the same company.
Catalog

JSC Series Screw Compressor Lineup

Three series cover the entire industrial range. The difference between them lies in their configuration and drive type, not in the quality of the components: all feature a highly durable air-end, an IE3-efficiency motor, and an integrated variable-frequency drive.
SeriesPowerFlow rate at 10 barSettingsTransmissionSound Level
JSC VTD3–15 kW (4–20 CV)0.35–2.11 m³/min300- or 500-liter tank with built-in dryerPoly-V Belt68–70 dB
JSC V3–45 kW (4–60 CV)0.35–6.43 m³/minOn a frameBelt-driven68–72 dB
JSC VD18.5–315 kW (25–430 CV)2.85–46.42 m³/minOn a frameDirect71–79 dB
All models are available in three working pressures: 7.5 bar for applications that do not require high pressure, 10 bar as the most common industry standard, and 13 bar for processes that require greater pneumatic force. The flow rates in the table correspond to 10 bar; at 7.5 bar, the flow rate increases, and at 13 bar, it decreases.
The performance of the entire product line is measured in accordance with ISO 1217:2009, Annex C, based on an inlet pressure of 1 bar and an ambient temperature of 20 °C. This data allows for the comparison of equipment from different manufacturers on a consistent basis.

Three configurations depending on your setup

VTD Series, tank-mounted compressor with dryer.

Designed for small and medium-sized businesses, gas stations, repair shops, and paint shops. It features a compressor, a 300- or 500-liter tank, and a refrigeration dryer with a constant dew point of 3 °C, plus a water separator and built-in filters. The dryer has a separate control panel with Digi-Pro monitoring, allowing it to be operated independently of the compressor when necessary.

View screw compressor with variable-speed drive and dryer

VD Series, direct-drive variable-speed drive.

Covers 3 to 45 kW with belt drive. This is the ideal option when you already have a boiler and air treatment system in place and only need to replace or add the compression equipment. You can view the complete V Series lineup with its flow rates by pressure.

View screw compressor with variable-speed drive

V Series, frame-mounted variable-speed compressor.

From 18.5 to 315 kW, designed for medium-pressure industries with continuous production that operate at high capacity throughout the workday. The direct drive eliminates the belt and its mechanical losses, with a service life of 8,000 hours and a 50% reduction in service costs. This is the VD direct-drive series.

View screw compressor with direct-drive variable-speed drive

How to Size Your Screw Compressor

Factors to consider before choosing a compressor:

Required flow rate

Determine the total air consumption of your system by adding up the flow rate at each point of use and adding a margin for future expansion. An oversized compressor goes through short load-unload cycles that accelerate wear and tear; an undersized compressor is always operating at its limit and cannot maintain pressure during peak demand.

Working pressure

Most industrial facilities operate at 10 bar. If your tools or processes require less pressure, a 7.5-bar model will consume less energy to perform the same task. If you need higher pressure for mold blowing or leak testing, the range goes up to 13 bar.

Available Space and Configuration

If floor space is limited or nonexistent, VTD models integrate a compressor, receiver tank, and refrigeration dryer into a single, plug-and-play unit. If you already have a receiver tank and air treatment system, the V and VD series allow for more flexible rack-mounted installation.

Why choose a JENDER screw compressor?

Direct manufacturer with 20 years of experience

We design, manufacture, and sell directly from our plant in Alicante, with no middlemen. This means competitive prices, total quality control, and the ability to manufacture equipment to your specifications when standard models don’t meet your needs. Other power ratings and pressures are also available upon request.

Standard Frequency Converter

While other manufacturers offer it as a paid option, it comes standard on all models in the JSC series. Energy savings, constant system pressure, and smooth startup from day one.

Simple and cost-effective maintenance

Front access to all service components, large, standardized filters to extend service life, and genuine replacement parts always in stock. We offer maintenance kits for all models. If you’d like to know what’s done during each service visit, we’ve detailed the service items for a screw compressor.

Technical support throughout Spain, 24 hours a day, 365 days a year

With a dealer network, genuine replacement parts, and scheduled preventive maintenance. The most expensive machine is the one that's not running.

Certified Quality

ISO 9001:2015 certified by Bureau Veritas, CE marking, TÜV Austria, TSE, and EAC.

Screw Compressor or Piston Compressor: Which One Do You Need?

A screw compressor is the best choice when your facility requires a constant air supply during long shifts, such as on production lines, in automation systems, or at multiple simultaneous points of use. Its continuous operation, lower noise level, and longer maintenance intervals make it ideal for industrial environments.
A piston compressor is best suited for intermittent use, with peaks in demand followed by pauses, such as in maintenance shops, paint shops, or for inflating tires. It has a lower purchase price and is easier to maintain for applications with fewer daily operating hours.
CriterionScrewPiston
Usage GuidelinesContinuous, 100% duty cycleIntermittent, with pauses
Flow RateSteady, no pulsationPulsating
Sound level68–79 dBSignificantly higher
Initial InvestmentHigherLower
Energy CostLower during intensive useLower with sporadic use
MaintenanceSpacing, specialized technicianFrequent, simpler
If you’re not sure which type you need, our technical team can analyze your usage patterns and recommend the most efficient solution.

Do you need help choosing your compressor?

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Frequently asked questions about screw compressors

How many hours a day can a screw compressor run?
Jender screw compressors are designed to operate 24 hours a day, 7 days a week. Their oil-injection cooling system and highly durable components allow for continuous use without overheating or premature wear.
The initial investment is higher than that of a piston with similar power, and maintenance—though infrequent—requires technicians with specialized training and specific replacement parts. If your facility’s air consumption is intermittent and limited to just a few hours a day, the economic analysis may not favor the screw compressor. That’s why it’s a good idea to analyze your actual consumption pattern before making a decision.
Basic maintenance consists of changing the oil, oil filter, air filter, and separator filter according to the intervals specified in each model’s manual. Because all service components are accessible from the front, these tasks can be performed quickly and without the need for special tools.
Belt drive is the most common option for low- and medium-power applications, up to 45 kW. Direct coupling eliminates the belt and connects the motor directly to the rotor, reducing mechanical losses and improving efficiency at medium and high power ratings, starting at 18 kW. Jender’s VD models use this drive system.
It adjusts the speed of the electric motor based on actual compressed air demand. When demand drops, the motor reduces its speed rather than running at no load or cycling on and off, resulting in energy savings of up to 35% compared to a fixed-speed compressor.
It depends on the application. Compressed air contains moisture that, as it cools in the distribution network, condenses and can damage tools and actuators or contaminate the final product. For most industrial applications, a refrigeration dryer is necessary. Jender’s VTD models come with one built in from the factory.
Yes. In addition to compressors, we supply and install aluminum piping systems, refrigeration dryers, filters, condensate drains, separators, air receivers, and all the necessary accessories for a complete compressed air system.
Yes. Since we manufacture the equipment ourselves, we can customize it to specific requirements when the standard model doesn’t fit the installation, and we can provide other power ratings and pressures upon request. Tell us about your situation, and we’ll assess the technical feasibility.
Yes. In addition to compressors, we supply and install aluminum piping systems, refrigeration dryers, filters, condensate drains, separators, air receivers, and all the necessary accessories for a complete compressed air system.

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Tell us your facility’s air consumption, the pressure you need, and the space you have available, and we’ll prepare a proposal with a model sized specifically for your application. There’s no obligation, and you’re guaranteed to deal directly with the manufacturer.

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