Modernization is Sustainable

Modernizing with Wheel Blocks

Precision and perfection allow the restoration of overhead crane structures, no matter how old they may be

Crane kits, wheel blocks, or end carriages

The sustainability of recycled equipment

The modernization of an overhead crane can be considered a sustainable option due to improvements in energy efficiency, emission reduction, enhanced durability, improved safety, and the adaptability it can provide. These enhancements contribute to sustainability by reducing the consumption of natural resources, greenhouse gas emissions, and waste, while simultaneously protecting the health and safety of workers.

Once it is ensured that the bridge structure and end trucks are in good condition, the modernization of the electrical system, hoist, and wheel blocks will turn what is essentially an obsolete crane into a modern system with all the safety features required for a secure and reliable operation.

BEFORE

ZENTRATEC, polipastos para el manejo de materiales

AFTER

1. ENERGY EFFICIENCY:

Modernized overhead cranes often incorporate more energy-efficient technologies. This may include more efficient motors, variable speed control systems, and regenerative braking, among others. These improvements can significantly reduce energy consumption and therefore, lower the carbon footprint of the equipment.

2. EMISSION REDUCTION:

By enhancing energy efficiency, the greenhouse gas emissions associated with the operation of the overhead crane are reduced. This contributes to the mitigation of climate change and supports the achievement of emission reduction targets.

3. GREATER DURABILITY:

The modernization of an overhead crane can include the replacement of worn or outdated components, which extends the equipment's service life. This reduces the need for manufacturing new overhead cranes, thereby decreasing the consumption of natural resources and the generation of waste.

4. ENHANCEMENT OF SAFETY:

The modernization of an overhead crane can include the installation of additional safety systems, such as proximity sensors, load detection systems, and remote control systems. These improvements can reduce the risk of accidents and injuries, which in turn contributes to sustainability by protecting the health and safety of workers.

Innovative: Design with Wheel Blocks

Our wheel blocks feature three coupling methods,

Welding
Bolting
Screwing

The adaptability to your needs allows for universal integration, responding to highly reliable modernization.

Reliable: Smooth Movements

The silent gears of our gearmotors ensure that startup and acceleration are smooth. Braking, determined by precise calibration of the disc pressure, allows for precision work, avoiding abrupt movements. Thus, our components contribute to high operational safety and reliability.
The standard model includes two speeds with a 1:4 ratio or a continuous speed with frequency regulation offering a 1:10 ratio.
Reduced maintenance permanent lubrication gear system
Smooth travel characteristic thanks to its integrated inertia mass and a quiet gear system.
Secure Power Transmission via Splined Shafts According to DIN 5480
Complete Equipment: Integrated disc brakes, Integrated torque limiter

Wheelblocks

Cranekits Mounting Manual

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Crossing the boundary of what's possible

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Electric chain hoists

Electric Chain Hoists

Years of research and experience in developing hoists have culminated in the ST chain hoist from STAHL CraneSystems. Its design, available in 7 sizes and 7 basic variants with capacities ranging from 125 to 6,300 kg, covers an ideal spectrum for the efficient handling of your materials.
The ST hoist is the equipment with the most engineering variations on the market. We provide countless non-standard solutions, positioning ourselves as a benchmark in the international market.
The ST hoist from STAHL has undergone numerous updates time and again, continuously optimizing its unsurpassed qualities. The result is a robust, versatile hoist with an extended service life.

Find the most compact, powerful, and easy-to-maintain hoist for your business with Zentratec.

ZENTRATEC, polipastos para el manejo de materialeskp_mkp_003_m

Excellent performance under adverse conditions thanks to substantial performance reserves.
Compact dimensions and highly accessible for maintenance.
Two hoisting speeds with a 1:4 ratio.
Capacities ranging from 125 to 6,300 kg
Elevated hoisting up to 100 m
IP54 (IP66) Motor with Excellent Cooling and High ISO/FEM Ratings
Very easy maintenance due to its modular system.
Electromagnetic disc brake with ample reserves, easily accessible for quick inspection or replacement.
Lifting Limit and Mechanical Overload
Sturdy adjustable friction clutch.
Hardened, ground helical gearboxes, and oil bath lubrication. Very low noise level.
Guía de cadena fundida en una pieza de hierro nodular y alta resistencia al desgaste.
Cast chain guide made from ductile iron with high wear resistance.
Compact control panel with mechanical end-of-travel and overload limits.
Stationary, monorail trolley, and birail trolley.

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The hoist that is designed according to your requirements:

Normal headroom, short, and ultra-short trolleys.
STD Model Hoists with 2 Synchronized Hooks (Special for the Industry Handling Rollers)
STB Hoists for Safe Handling of Super Sacks.
ATEX Explosion-Proof Hoists.
Multiple combinations of lifting capacity and hoisting speeds.
High service rating
Monorail Trolleys (Standard and Articulated) Special up to 6,300 kg
Control por contactores o variador de frecuencia
Geared Limit Switches as an Option
Special coating and Protection Against Aggressive Media

ST - the most versatile

Some accesoires

dynamometer
Travel limit switches
Electric hoisting contact limit switches
Geared limit switch
Secondary brake for increased safety in challenging operations
Quick coupling connections
Textile, plastic, or steel sheet chain guards
Geared limit switch

ST, Chain Hoist with Standard Trolley

The ST hoist in its standard version can be supplied as stationary, with a manual trolley or with a dual-speed electric trolley. It is the best-selling model when special applications are not required. Combine it with our HBC remote controls, or the traditional pendant control station attached to the hoist. Its performance is excellent.

ZENTRATEC, polipastos para el manejo de materiales

STK, Ultra-Short Design Hoists Inventory (Stock)

STK, Ultra-short in design with a 60% reduction in headroom compared to the standard trolley model. Suitable for applications where ceiling space is limited.

STB, ideal for moving supersacks and unloading into silos.

The STB hoist stands out for featuring a crossbeam that positions the hook at a distance from the hoist itself, allowing for the maximization of the lifting height. The operational safety of this hoist is reflected in the increased productivity and precision.

STD, with Double Hook for Rollers

Roller movement always requires precise and synchronized motion. The STD hoist with fixed hook spacing and perfectly synchronized facilitates safe and efficient handling of the most complex assembly operations.

The "vario" model allows for the adjustment of the distance between hooks when handling rollers of varying lengths.

Offshore hoists, hazardous environments

To withstand the corrosive marine environment, hoists must have adequate IP 66 protection. STAHL can design hoists with corrosion-resistant components, stainless steel panels and cable glands, and armored flexible tubing to ensure operability in extreme conditions. Epoxy or polyurethane coatings with thicknesses of up to 320 microns protect the metal surfaces.

ST, FOR USE IN THE FOOD INDUSTRY

The food industry requires corrosion-resistant hoists. We provide components made of stainless steel, such as the load chain and hook block, special paint coatings, and IP 66 protection for use in wet areas.

Special Design Hoists

One of the major strengths of STAHL CraneSystems lies in non-standard solutions. The experienced R&D department has played a key role in advancing chain hoist technology over the past 100 years.

STAHL introduced the link chain for hoists in the 1950s. Recently, its valuable contribution has led to the development of new smart products for the market. Together, STAHL provides the flexibility to develop the perfect solution for your project in the shortest time possible.

Specialized designs for applications according to your needs:
ST ZW twin (with two hoists) for capacities up to 10 tons.
Rack-and-pinion trolleys in the ship's engine room
Long Hoists for Wind Farms and Buildings
Forced Ventilation Motors for High-Temperature Areas (+70°C)
Stainless Steel Hooks and Rigging for the Food Industry
Special Executions for the Pharmaceutical Industry
Explosion-Proof Equipment (refer to the ATEX Explosion-Proof Equipment section)

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Chain Hoist ST Catalog

Chain Hoist ST Brochure

Electric wire rope hoists

Electric Wire Rope Hoists

Type SH and AS

SH
SH EX
AS

Electric wire rope "SH"

Robust and compact modular design -
Capacities ranging from 1,000 to 32,000 kg
Elevated hoisting up to 200 meters
Motor with excellent cooling and easy maintenance.
Easily accessible disc brake for quick inspection or replacement
Hardened and ground helical gears gearbox
Lifetime Oil Bath Lubrication
Lifetime Oil Bath Lubrication
Compact control panel with integrated travel limits and overload protection
Stationary, monorail trolley, and double rail crab
Different Wire Rope Lead Directions
Drums with Single or Dual Windings (TVL)
Different mounting methods, supported or suspended

AS Hoist

Capacities ranging from 6,300 to 125,000 kg
The AS hoist supersedes the SH hoist in capacities starting from 32,000 kg.
Sturdy and indestructible welded steel frame.
Elevated hoisting up to 200 meters
Motor with excellent cooling and easy maintenance. The disc brake is easily accessible for quick inspection or replacement.
Gearbox with hardened, precision-ground helical gears, and oil bath lubrication.
Lifetime Oil Bath Lubrication
Compact control panel with integrated travel limits and overload protection
Stationary, monorail trolley, and double rail crab

More Information

Hoist Protection IP55 (IP66 optional)
Electromagnetic dual-disc brake with over 1 million braking cycles.
One-piece cast lateral access gearbox housing (SH30, SH40, SH50) machined with utmost precision and stability.
Fully sealed reduction gear box.
Gear with a high degree of hardness, precision-ground, ensuring an extremely long service life and very quiet operation even under heavy-duty conditions.
Oil bath lubrication
The gear reducer and drum are optimized to provide maximum safety under extreme conditions
Abrasion-resistant load rope deflection pulleys
Special construction, high-strength, ultra-flexible steel cable
The safety factor of the wire rope is ≥ 5.0 as standard (exception: < 5.0 for SH 4016, SH 5032, SHR 6040) < 5.0 para SH 4016, SH 5032, SHR 6040.

Options

Inverter Drive Control instead of Contactors
Multiple voltage options at 60 Hz: 208, 220, 380, 440, 460, 480, 525, 690V
Control voltages at 24, 48, 120, 230 V
Second brake (ratchet) on the wire rope drum
Loose cable option via floating bar over the drum
use in tandem, A,B / A+B
Main and auxiliary equipment on a trolley
SMC 3 Load Spectrum: Real-use hoist failure protocol according to FEM 9.755. Other significant data are accounted for, stored, and calculated. Thus, independently for slow lifting speed and fast lifting speed, the following service data are determined.
• Total service hours
• Motor connections
• Duty Cycle (ED)
• Switches per hour (s/h)
• Overloads
• Overheating disengagement
• Ciclos de carga y los ciclos de carga máxima resultante
Display de carga interconectado con el sistema de sobrecarga del polipasto

Custom Solutions

Executions according to your needs
Capacities from 1,000 to 125,000 kg
Elevated hoisting up to 200 meters
Supported or Suspended Installations
Wire rope Exit in Different Directions
Capacities and speeds to be agreed upon
High service classification flexibility
Monorail Trolleys (Standard and Articulated) Special up to 50,000 kg
Contactor Control or Variable Frequency Drive.
Integrated travel limits and overload with broad adaptability.
Different voltages available without the need for adapting transformers.
Stationary, monorail trolley, and double rail crab

Precision and Perfection for a World Aiming to Produce Sustainably:

ZENTRATEC

WHY STAHL?

The STAHL CraneSystems SH hoist has been the global benchmark as the best wire rope hoist. Many of our customers who use them under truly adverse conditions confirm this by repeatedly purchasing the STAHL brand. Efficiency, productivity, low maintenance, reliability, and operational safety, combined with countless important accessories for correct performance, make them indispensable in the process of an industry thirsty for perfect processes.

Zentratec

ENGINEERING WITH OVER 100 YEARS OF EXPERIENCE

--, STAHL CraneSystems ha sido uno de los actores más importantes del mercado mundial. La ingeniería e investigación han desarrollado confiables polipastos eléctricos de cable con los que nuestros clientes elevan su productividad al máximo.

ZENTRATEC, polipastos para el manejo de materiales

Custom Solutions Tailored to Your Needs

+Su proceso es intenso, con varios turnos al día y los polipastos eléctricos sometidos a un alto régimen de uso.
+Su proceso es de uso esporádico pero necesita que los polipastos eléctricos funcionen cuando Ud los necesita.
+Su proceso es tan sofisticado y requiere de alta confiabilidad y precisón que requiere de un polipasto eléctrico fuera de lo estándar:
ZENTRATEC–STAHL le dará solución a su entera satisfacción.

ZENTRATEC, polipastos para el manejo de materiales

Explosion-Proof

No hay muchos fabricantes, si acaso, que hayan invertido tanta investigación en desarrollar polipastos electricos a prueba de explosión que pueden soportar climas gélidos de -60°C y cumplan con las exigentes normas ATEX. Se necesita ser un experto en la materia para desarrollar polipastos: En Zentratec-Stahl CraneSystems nuestros ingenieros son su mejor opción.

ZENTRATEC, polipastos para el manejo de materiales