Twin Jack Holeless, 1 & 2-Stage Freight

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Freight Elevators > Twin Jack Holeless, 1 & 2-Stage

Single Opening (F)

Double Opening (F/R)

= Platform Width = Platform Depth = Hoistway Width = Hoistway Depth	= Clear Door Width = Clear Door Height = Overhead = Pit Depth = Door Clearance
= 5" for Regular Type Doors = 6 ¾" for Pass Type Doors

For capacities over 10,000 lbs., rail bracket fastening may require beam support as shown. A Structural Engineer needs to determine that the hoistway structure will withstand the rail forces shown on the layout drawing.

Download Written Specifications
	5000-6000 lbs.
	8000-15000 lbs.

Printable Brochure

Do not use hoistway dimensions for construction purposes. Different code year adoptions and local code variations may affect the hoistway size. Verify all dimensions with MEI prior to construction.
Freight Elevators - Standard Specifications
Cap.	Platform x	Hoistway With Power Regular Doors x	Hoistway With Power Pass Doors x	Pit Depth	Front (F) Rear (R)	Clear Inside With Single Section	Clear Inside With Two Section	Door Width And Height x	Elevation & Plan View Drawings
4000	7'-0" x 8'-0"	8'-8" x 8'-8"	8'-8" x 8'-9 ¾"	See	F	6'-8" x 7'-7"	6'-8" x 7'-4 ½"	6'-8" x 8'-0"
4000	7'-0" x 8'-0"	8'-8" x 8'-10"	8'-8" x 9'-1 ½"	Below	F/R	6'-8" x 7'-6"	6'-8" x 7'-1"	6'-8" x 8'-0"
5000	8'-0" x 9'-0"	9'-10" x 9'-8"	9'-10" x 9'-9 ¾"	-	F	7'-8" x 8'-7"	7'-8" x 8'-4 ½"	7'-8" x 8'-0"
5000	8'-0" x 9'-0"	9'-10" x 9'-10"	9'-10" x 10'-1 ½"	-	F/R	7'-8" x 8'-6"	7'-8" x 8'-1"	7'-8" x 8'-0"
6000	10'-4" x 10'-0"	12'-2" x 10'-8"	12'-2" x 10'-9 ¾"	-	F	10'-2" x 9'-7"	10'-0" x 9'-4 ½"	10'-0" x 8'-0"
6000	10'-4" x 10'-0"	12'-2" x 10'-10"	12'-2" x 11'-1 ½"	-	F/R	10'-2" x 9'-6"	10'-0" x 9'-1"	10'-0" x 8'-0"
8000	10'-4" x 12'-0"	12'-4" x 12'-8"	12'-4" x 12'-9 ¾"	-	F	10'-2" x 11'-7"	10'-0" x 11'-4 ½"	10'-0" x 8'-0"
8000	10'-4" x 12'-0"	12'-4" x 12'-10"	12'-4" x 13'-1 ½"	-	F/R	10'-2" x 11'-6"	10'-0" x 11'-1"	10'-0" x 8'-0"
10000	10'-4" x 14'-0"	12'-4" x 14'-8"	12'-4" x 14'-9 ¾"	-	F	10'-2" x 13'-7"	10'-0" x 13'-4 ½"	10'-0" x 8'-0"
10000	10'-4" x 14'-0"	12'-4" x 14'-10"	12'-4" x 15'-1 ½"	-	F/R	10'-2" x 13'-6"	10'-0" x 13'-1"	10'-0" x 8'-0"
12000	12'-4" x 12'-0"	14'-4" x 12'-8"	14'-4" x 12'-9 ¾"	-	F	12'-2" x 11'-7"	12'-0" x 11'-4 ½"	12'-0" x 8'-0"
12000	12'-4" x 12'-0"	14'-4" x 12'-10"	14'-4" x 13'-1 ½"	-	F/R	12'-2" x 11'-6"	12'-0" x 11'-1"	12'-0" x 8'-0"

Automobile Lifts
8000	9'-4" x 21'-8"	11'-4" x 22'-4"	11'-4" x 22'-5 ¾"	-	F	9'-0" x 21'-3"	9'-0" x 21'-0 ½"	9'-0" x 8'-0"
8000	9'-4" x 21'-8"	11'-4" x 22'-6"	11'-4" x 22'-9 ½"	-	F/R	9'-0" x 21'-2"	9'-0" x 20'-9"	9'-0" x 8'-0"

Notes:

Overhead dimensions are based on 6 foot high car gate.
Two section car gates are not recommended for high usage installations or wide openings.
For extra high door opening requirements, or special conditions, consult your representative.

Quick check for determining overhead required:
For 1 Stage Jack	For 2 Stage Jack
A) Car Speed = Up to 150 FPM B) Top Overtravel = 5" C) Bottom Overtravel = 12" D) Pit Depth = 4'-6" E) Cab Height = 8'-0"	A) Car Speed = Up to 150 FPM B) Top Overtravel = 12 " C) Bottom Overtravel = 10" D) Pit Depth = 4'-6" E) Cab Height = 8'-0"
One Stage Jack Overhead Requirement for Single Section Gate: Minimum of 14'-6" overhead required for 14'-6" of travel and under. If over 14'-6" travel, overhead must equal or be greater than total travel. One Stage Jack Overhead Requirement for Two Section Gate: Minimum of 12'-4" overhead required for 12'-4" of travel and under. Add 1" to 12'-4" for every additional 1" of travel over 12'-4". Two Stage Jack Overhead Requirement for Single Section Gate: Minimum of 15'-1" overhead required for 26'-8" of travel and under. Add ½" to 15'-1" for every additional 1" of travel over 26'-8". Two Stage Jack Overhead Requirement for Two Section Gate: Minimum of 13'-0" overhead required for 22'-6" of travel and under. Add ½" to 13'-0" for every additional 1" of travel over 22'-6".

ASME A17.1 code requirements for minimum rated capacity are as follows:
Class A	(General Freight Loading) – 50 lbs. per sq. ft.
Class B	(Motor Vehicle Loading) – 30 lbs. per sq. ft.
Class C-1	(Industrial Truck Loading – truck carried by elevator) – 50 lbs. per sq. ft., but not less than load, including weight of truck.
Class C-2	(Industrial Truck Loading – truck is normally used for loading and unloading only, and is not usually carried by elevator) – for elevators of 20,000 lbs. capacity or less capacity shall equal the weight of the loaded truck – maximum load on platform during loading and unloading not exceed 150% of rated load.
Class C-3	(Other loading with heavy concentrations where truck is not usually used) – 50 lbs. per sq. ft., but not less than load.
NOTE: Square feet area of platform is determined by net inside area.

Calculations based on EMS Gates and Doors
Minimum Overhead for Single Section Gates
	= 14'-6"
Minimum Overhead for Two Section Gates
	= 12'-4"
Clear Inside of Cab
	Width = Platform – 4"
Front Opening Only
	Depth = Platform – 5" for Single Section Gate
	For Doors Exceeding 13'-6" in Width - 6 ½"
	Depth = Platform – 7 ½" for Two Section Gate
	For Doors Exceeding 13'-6" in Width - 9"
Front and Rear Opening
	Depth = Platform – 6" for Single Section Gate
	For Doors Exceeding 13'-6" in Width - 9"
	Depth = Platform – 11" for Two Section Gate
	For Doors Exceeding 13'-6" in Width - 14"

General Note:
	1 lb. = 0.454 kg	1ft² = 9.29 E-2m²