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Bin Jacker Supply is
located in Canton, SD
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The History of Simes Bin Jacks

1960s to 1990s - Sib Simes' "Simes Grain Bin Jacks".

Sib Simes developed his style of jacks from the government-issue Binkley dolly Jacks in the nineteen-sixties in Walters, Minnesota. Sib marketed these jacks into the early nineties. The Sib Simes jacks were distinguishable by their John Deere green color, flat gearbox cover, and removable gearbox bushings. They also had Binkley machined all-steel gears, an independent idler shaft, and roller bearings on the thrust screw. The bottom bevel gear and thrust screw had matching machined flats with a threaded jam nut to hold the bevel gear securely in place. Sib Simes used Binkley dolly parts to build his jacks, which were rated at 29,000 lbs. This gave a yield strength of 10,000 lbs. and a recommended jacking capacity of 9,500 lbs. Sib sold his jacks in the nineties following his illness, Allen Anderson managed the company and later purchased the company. Also at that time Binkley sold out to Holland who used compatable parts, but the parts were not completely identical.

1992 to 1999 - Allen Anderson's "Anderson Simes" Grain Bin Jacks.

In 1992 Allen Anderson started to produce jacks at the same site in Walters, Minnesota for Sib's company. Allen later bought the company. By this time Holland had bought out Binkley and Anderson started replacing Binkley parts with Holland parts. Anderson Simes jacks are recognizable by their Holland indented gearbox cover and cast steel gears, new John Deere green color, oil impregnated bushings, steel bulkheads, roller bearings, and floating bevel gears. Anderson also adapted a straight tube over the splined shaft. Anderson Jacks were rated at 29,000 lbs with a yield strength of 10,000 lbs. and a recommended jacking capacity of 9,000 lbs.

1999 to 2006 - Sioux Steel's "Sioux Simes" Grain Bin Jacks.

Sioux Steel started manufacturing a Simes style jack in 1999 and manufactured the jack until 2006. Sioux Simes style jacks look very similar to Anderson Simes jacks and are often confused with them except for the Sioux Simes style jack's forest green color. Sioux Simes style jacks used Holland parts with an indented gearbox cover and gears. Sioux Simes style jacks had lower lifting stats due to different manufacturing methods. Sioux Steel replaced the channel iron "T" with the milled "T" for the yolk assembly at the suggestion of Allen Anderson. Sioux also replaced the roll pins and went to a welded solid steel rod. The milled "T"s and the welded steel rod changed the function of the yolk and linkage. Due to Sioux Steel production methods rated capacity was unknown, however the approximate yield capacity was 7,500 pounds based on field studies. In 2006 due to production standards, Sioux Steel decided to sell their remaining inventory. With the help of an independent engineering source Sioux Steel changed some of the components of the jack and assigned manufacturing to Koyker Manufacturing.

2007 to 2013 - Koyker Manufacturing "Koyker Simes" Grain Bin Jacks.

Koyker Manufacturing took over the Simes style jack production in 2007 and manufactures it to this day. They also made some changes by installing a skid plate on the front of the jack base because of the thrust bevel gear fastener and brass bulkhead bushing. They removed the floating bevel gear for a bolt and washer fastener on the bottom of the thrust screw to the bevel gear to help secure it. For these reasons the jack is limited to a lower lifting capacity of about 8,000 pounds. Koyker Simes style Jacks are identified by light yellow paint, Holland indented gearbox cover, gears, and a different shape on the jack base and tall top.

Tom Schorn's "Schorn Simes" Grain Bin Jacks.

The Schorn Simes style jacks are redesigned and upgraded with new positive improvements. These improvements are available to some other Simes style jacks. Schorn Simes style jacks were a limited amount of experimental jacks and were made with parts from existing vendors. They were designed for more stability and for the larger bin erection. Many bin jackers provided valuable suggestions for the engineering of the jack. The goal of a recommended jacking capacity of 10,000 lbs. was achieved. They are painted Old Cat Yellow and have an indented Holland gear box and Holland gears.

The Best Mechanical Grain Bin Jack, The "Super Simes" Grain Bin Jack.

The Super Simes style jack was developed based on the field trials of the Schorn Simes style jack. When asked about the development of the Super Simes Grain Bin Jack, Tom Schorn is quoted in saying: "My Super Simes were designed by the guys in the shop and perfected by the guys in the field, THEN we let the office guys got to come out and take pictures of it."

The Super Simes Grain Bin Jacks are designed to handle pencil bins and large grain tanks. The base is wider, has extra anchor holes, and is made of a heavier gauge material. The heavier yolk with adjustable linkage were redesigned to accommodate 32 inch, 39 inch, 42 inch, and 44 inch wide sheets. This was done to handle the demand for safety. They are Old Cat yellow in color with an indented Holland gearbox cover and Holland gears. Super Simes style jacks have a recommended jacking capacity of 12,500 lbs.

The Mission of Bin Jacker Supply

Bin Jacker Supply has done the next step in Simes style jacks by providing an inventory of after-market parts. We also provide training, repairs, and total rebuilding of all Simes style jacks. We've made the jack safer, more user friendly, and more accountable. We have tested the lifting capacity of the products and have had them certified through testing. We have brought the jacks to the standard of meeting current OSHA requirements. We carry a warranty on all of our manufactured products backed with manufacturers liability insurance. We are always open to new improved ideas from people who are doing this type work and are willing to help by providing information so we may provide a better product.

All the information provided on this page is correct and accurate to the best of our knowledge.