Company Updates

Metropolis | New Project Update

news-rendering Metropolis is a multi-use high-rise complex of buildings located in downtown Los Angeles.

Sky Rider has been contracted to provide window washing equipment on the four main towers. The use of BMU’s (Building Maintenance Units) has become the new normal for window washing equipment on modern high-rise buildings and these buildings are no exception. Highlighted here is the most recent BMU installation on this complex. As can be seen on the attached drawings and photographs, the BMU performs multiple actions including traversing, vertical telescoping for storage, horizontal telescoping for varying outreach and platform rotation to access every window of the complex façade. The platform spans 38 feet of façade.

Martin Villegas (President) and Carl Gray (Founder) pose in front of the BMU. It is currently in use for construction activity. Note that the building in the background is the 73 story Wilshire Grand tower now in completion with a Sky Rider supplied BMU. Watch for future news on this installation.


New Vans Added to Our Service Department

Service VansFor more than 30 years Sky Rider has been dedicated to servicing not only the wide range of products and equipment that we manufacture and sell, but also equipment manufactured by others. We have recently added a small fleet of vans to our service department. These vans should help in providing faster and more efficient service for our local customers.

Sky Rider's New Company Logo

When Sky Rider first opened its doors for business, its primary sales were products such as the Tirak Hoist, Alta Platforms and other products sold by Griphoist based near Boston, Massachusetts. With approval from Griphoist, we used the exact font and style they used for their logo and added the image of the Alta Platform below it to create a seamless image tying us to those products. Over the course of 30 years, Sky Rider has continued sales of the Tirak hoist but has developed many of its own products including a modular platform for dedicated permanent installations. In addition, during the last 10 years, we have been selling “Building Maintenance Units” imported from Spain. As reflected in the many website pages dedicated to these unitized “BMU’S”, they have become an important part of Sky Rider’s business model

With my retirement and Martin Villegas taking over the reins of the company, Martin felt that a new logo would be indicative of the many incremental changes and improvements made over the years leading to this major transition.

This new logo incorporates the look of the new platform as well as the crane-like appearance of the typical BMU.

Carl W. Gray CEO Emeritus

Sky Rider New Logo

Sky Rider Newsletter | June 2014 | Century Plaza Towers

Sky Rider is pleased to announce the completion of the Building Maintenance Unit (BMU) installation on the two Century Plaza Towers. As previously noted in our February 2014 Newsletter, the towers are 571 feet in height and were completed in 1975. These towers have been a famous part of the West Side sky line since their construction. In the 1980’s detective series, Remington Steele, the towers were depicted as their headquarters. Numerous commercials have been shot using the towers as a backdrop and, most recently, The Green Hornet featured scenes in which the towers appeared prominently.

Because of the triangular footprint of the building and the sloping cut at each corner, the original window washing machine could only access the glass portion of the curtain wall. When it was necessary clean the aluminum corners, outrigger beams and transportable platforms had to be utilized to accomplish the task.

Sky Rider worked with Gondolas in Design (GinD) to design BMU’s that are able to access the entire building, saving substantial window washing and metal cleaning cost. These BMU’s operate on a runway with motorized steering wheels. The BMU may be operated both from the rooftop and from the platform. The controls include platform elevation, platform rotation, raising and lowering of the jib, steering and right and left traverse. Elevation is controlled through a Frequency Inverter that allows ramping of the up and down functions for smooth, jerk-free operation.

The platform is suspended from four wire ropes that are wound on a multi-layer drum. The drum system provides several advantages over a traction hoist system. First, the drum is gentle on the wire ropes providing an extended operating life. Second, because the wire ropes are fixed at both ends, electrical conductors can be placed inside the wire ropes for continuous control communication between the BMU and Platform. This eliminates the need for Hanging control cable, radio frequency or electromagnetic control which is particularly prone to grounding and service interruption. And, finally, the platform will remain relatively level without operator intervention.

The following pictures depict the completed BMU on the rooftop. For more information on the buildings, the following links have been provided:

Century Plaza Towers BMU Figure 1. The completed BMU (One of Two) on the Century Plaza Towers. Note the counter-weighted Jib arms with a rotating spreader bar suspending the platform. The BMU is mounted on a base assembly with eight caster wheels to distribute its load on the existing deck and to contribute to ease of steering and maneuverability.

Century Plaza Towers Descriptive Drawing Figure 2. This Descriptive Drawing of the BMU, is provided for reference to illustrate the various components utilized in in its operation. Note what we refer to as the platform, the component that position workers on the façade, is often referred to as a “cradle”. (click on the image to enlarge)

Century Tower Plaza Towers Figure 3. Shown here in this screen capture from Google Earth, which depicts the unique footprint of the towers.