LD industrial pneumatics and air compressor machinery

Industrial machinery and fluid power equipment by LD (LD GmbH): rotary screw compressors, air treatment units, fluid control valves, and pneumatics.

LD industrial rotary screw and rotary-vane compressors

LD oil-injected rotary screw compressors provide continuous compressed air for manufacturing plants. The units feature microprocessor control, robust drive assemblies, and high-efficiency electric motors engineered for demanding industrial operations.

Direct-coupled and belt-driven rotary screw units for industrial automation lines
Integrated oil separators and cooling heat exchangers for continuous operation
Digital controllers providing pressure regulation and real-time system monitoring
Routine maintenance kits, air filter elements, oil filters, and intake valves

LD industrial piston compressors and pressure boosters

LD reciprocating piston compressors and high-pressure boosters deliver reliable air compression for heavy engineering workflows. Heavy-duty alloy cylinders and balanced crankshafts ensure superior endurance during intermittent and continuous duty cycles.

Two-stage reciprocating compressors engineered for medium and high pressure lines
High-ratio pressure boosters designed for industrial bottling and testing benches
Durable alloy piston assemblies, drop-forged crankshafts, and heavy bearings
Replacement valve plates, piston rings, valve springs, and overhaul gasket sets

LD compressed air treatment, dryers, and line filtration

LD compressed air treatment systems eliminate moisture, oil aerosols, and solid particulate matter from process distribution piping. The equipment line includes refrigeration dryers, desiccant dryers, and line filters that protect downstream tools.

Refrigerated air dryers maintaining stable dew points for industrial shop floors
Desiccant dryers with heatless regeneration for critical outdoor installations
Multi-stage line coalescing filters for particulate and oil aerosol removal
Replacement filter elements, automatic condensate drains, and dew transmitters

LD industrial control valves, shut-off valves, and electrohydraulics

LD fluid control valves and electrohydraulic modules regulate streams of water, steam, and industrial gases across process lines. The range includes direct-acting solenoid valves, pneumatic angle seat valves, and proportional hydraulic blocks for plants.

Solenoid shut-off valves engineered for neutral and aggressive fluid media
Pneumatic angle seat valves with piston actuators for steam and liquid piping
Electrohydraulic proportional valves for responsive force and flow modulation
Replacement solenoid coils, elastomeric diaphragms, valve seats, and stems

LD pneumatic cylinders, directional control valves, and fittings

LD industrial pneumatics provide a complete component portfolio for factory automation systems. The catalog features ISO pneumatic cylinders, solenoid air valves, modular air preparation assemblies, and quick push-in connectors for automation builders.

Pneumatic cylinders compliant with ISO 15552 and ISO 6432 with cushioning
Solenoid pilot-operated directional valves for automated sequence execution
Modular air treatment units: particulate filters, regulators, and lubricators
Push-in brass fittings, flexible polyurethane tubing, and magnetic sensors

LD measuring instruments, pressure transmitters, and vacuum parts

LD instrumentation devices deliver precise monitoring of operating parameters in pneumatic and fluid power setups. The line includes digital pressure transmitters, airflow meters, vacuum generators, and vacuum suction cups for robotic automation.

Digital and mechanical pressure gauges engineered for fluid piping networks
Inline flow meters with standard industrial analog and digital output signals
Multi-stage vacuum ejectors, silicone suction cups, and digital vacuum switches
Standard M12 sensor cables, bracket mountings, and pulsation dampener fittings

Technology profile and logistics capabilities of LD GmbH in Europe

LD GmbH was established in 1993 in Sofia as a joint Bulgarian-German industrial enterprise dedicated to introducing European automation technologies and pneumatic components into modern manufacturing.

Over three decades of steady expansion, the company built an extensive logistics network centered around a 1200 square meter warehouse in Sofia maintaining more than 14000 active inventory items. The corporate quality framework has held ISO 9001:2015 certification since 2009.

Regional branch offices and distribution facilities across Plovdiv, Varna, and Shumen deliver responsive technical support and streamlined component delivery for diverse industrial manufacturing facilities.

LD industrial rotary screw and rotary-vane compressor systems

LD industrial rotary screw and rotary-vane compressor systems are engineered for uninterrupted delivery of pressurized air in metal fabrication, polymer molding, and automated assembly operations.

Thermodynamically balanced oil-injection architectures guarantee optimal rotor cooling and stable air discharge temperatures during peak workshop demand. Microprocessor control panels monitor line pressure, track maintenance intervals, and protect drive motors from electrical imbalances.

Routine servicing kits supply factory air filters, oil separator cartridges, thermostat valves, and intake valve seals that restore operating efficiency and factory specification performance across long operating shifts.

Heavy-duty piston compressors and high-pressure boosters from LD

Industrial reciprocating piston compressors and high-pressure boosters from LD provide heavy-duty compression for demanding technological applications such as plastic bottle blow molding, pressure testing of piping spools, and heavy pneumatic tool actuation.

Precision-machined iron alloy cylinders and dynamically balanced crankshafts minimize mechanical friction and mechanical stress. The modular compressor construction features accessible maintenance points for valve servicing.

Scheduled overhaul components include durable valve plates, compression piston rings, copper cylinder head gaskets, and crankshaft oil seals designed for extended operational endurance under high pneumatic pressure.

Comprehensive compressed air preparation and moisture removal by LD

Comprehensive compressed air preparation by LD incorporates refrigeration dryers, adsorption desiccant systems, centrifugal moisture separators, and multi-stage coalescing line filters.

Refrigeration dryers maintain a stable pressure dew point of plus three degrees Celsius, preventing condensate accumulation in indoor air headers. Heatless desiccant drying towers achieve deep moisture removal down to minus forty degrees Celsius dew points for vulnerable outdoor piping runs.

Advanced microfiber filter elements effectively trap particulate matter down to 0.01 micron and aerosol oil droplets, safeguarding downstream pneumatic machinery.

Fluid control valves and proportional electrohydraulic units from LD

The LD fluid control and regulation portfolio comprises direct-acting solenoid valves, pneumatic angle seat valves, and electrohydraulic proportional modules for handling neutral and chemically demanding fluids.

Piston-actuated angle seat valves provide rapid shut-off response for steam lines, industrial cooling water, and process gases. Proportional hydraulic manifolds maintain stable pressure regulation despite sudden fluid viscosity shifts.

Service parts inventory includes interchangeable solenoid coils, chemically resilient FKM and EPDM diaphragms, PTFE seats, and stainless steel return springs tailored for reliable valve restoration.

Standardized ISO pneumatic cylinders, valves, and monitoring sensors

Standardized ISO pneumatic cylinders, directional control solenoid valves, and automated position sensors from LD form the core actuation backbone for packaging machines and material handling conveyors.

Linear cylinders built to ISO 15552 and ISO 6432 standards feature adjustable pneumatic cushioning, hard-chromed piston rods, and low-friction polyurethane seals. Modular air preparation assemblies integrate particulate filters, precision diaphragm regulators, and proportional lubricators.

Digital pressure transmitters and vacuum switches facilitate real-time monitoring and feedback integration with factory PLC networks.

LD LTD and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of LD LTD and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.