Sleepers Type 1A

Impregnated Sleeper Factory of Georgia, LTD is one of the leading suppliers of impregnated sleepers for such large organizations as: JSC "Georgian Railway", the Georgian Metro and for many organizations depending on railway supplies. The purchase and production of wooden sleepers, bridge & transfer beams is carried out in accordance with the requirements. Impregnated Sleeper Factory of Georgia, LTD - Type 1A impregnated wooden sleepers fully comply with the requirements of standards:

• According to the quality and geometric parameters of wood - GOST 78-2004 "Wooden sleepers for broad gauge railways";
• Protective agent (antiseptic) - GOST 2770-74 "Coal oil for wood impregnation";
• Protection technology (impregnation) — GOST 20022.5-93 “Wood protection. Autoclave impregnation with oily protective agents.

Technical characteristics of wooden sleepers impregnated/non-impregnated production.
For the production of sleepers, wood is used, mainly coniferous species.
We produce edged (sawed on four sides) sleepers of two types:



Sleeper size:

Thickness mm	Width mm	Lenfth mm	Volume m3
180	230	2750	0,1237

Protection parameters of a wooden sleeper during conservation:
The protection of wood fully complies with the requirements of GOST 20022.0–93 “Protection of wood security Options»

The pre-impregnation moisture content of the sleeper is no more than 25%. Wood moisture content is determined in accordance with GOST 20022.14–84 “Wood protection. Methods for determining pre-impregnation moisture content»

Antiseptic absorption rates, kg/m3

Description	Minimal	Planned
Pine and cedar sleepers	79	96
Spruce and fir sleepers	90	105

Impregnation depth standards

Description	Impregnation depth
	By sapwood мм	On sound or ripe wood, мм
Pine and cedar sleepers	No less then 5	No less then 5
Spruce, fir and larch sleepers	No less then 5	No less then 5

The average service life of impregnated wooden sleepers is 15–20 years.

Sleepers Type 2A

LLC "Sleeper Impregnation Plant of Georgia" - Impregnated wooden sleepers Type 2A fully comply with the requirements of GOST:

• In terms of quality and geometric parameters of wood - GOST 78-2004 "Wooden sleepers for broad gauge railways";
• Protective agent (antiseptic) - GOST 2770-74 "Coal oil for wood impregnation";
• Protection technology (impregnation) — GOST 20022.5-93 “Wood protection. Autoclave impregnation with oily protective agents.

Technical characteristics of wooden sleepers impregnated/non-impregnated production.
For the production of sleepers, wood is used mainly from coniferous species.
We produce edged (sawed on four sides) sleepers of two types:



Sleeper sizes:

Thickness, mm	Depth, mm	Length, mm	Volume, mm
160	230	2750	0,101

Protection parameters of a wooden sleeper during conservation:
The protection of wood fully complies with the requirements of GOST 20022.0–93 “Protection of wood. Security Options»
The pre-impregnation moisture content of the sleeper is no more than 25%. Wood moisture content is determined in accordance with GOST 20022.14–84 “Wood protection. Methods for determining pre-impregnation moisture content»

Antiseptic absorption rates, kg/m3

Description	Minimal	Planned
Pine and cedar sleepers	79	96
Spruce and fir sleepers	90	105

Impregnation depth standards

Description	Impregnation depth
	By sapwood, mm	By sound or ripe wood, m
Сосновые и кедровые шпалы	at least 5	at least 5
Spruce, fir and larch sleepers	at least 5	at least 5

The average service life of impregnated wooden sleepers is 15–20 years.

Bridge beams

The length of the bridge beams of normal section is 3.25 m. The greater the distance between the axes of the longitudinal beams or trusses of the bridge (up to 2.5 m), the greater should be the cross section of the bridge beams (up to 24x30 cm) and their length (up to 4.20 m).

Transfer/Turnout beams

Most turnouts are operated on wooden beams, which have an advantage over other types of bases (for example, reinforced concrete beams): they are relatively easy to manufacture, have a low weight, make it relatively easy to provide electrical insulation of rail threads, and provide moderate track rigidity.
Wooden bars are made Broadened (B), Wide (W) and Normal (N).
Depending on the length, the beams are divided into groups, each of which differs from the neighboring ones by 25 cm. The shortest beams have a length of 3.0 m, the longest - 5.5 m. The number of beams in a single railroad switch depends on its brand: 1/9-63-68 pieces; 1/11-75-80 pcs; 1/18-135 pcs, 1/22-170 pcs Two transfer beams, on which the manual transfer mechanism of the arrow is located, are called wind vanes. In ordinary translations, they have a length of 4.5 m. To install the support under the connecting rods, two beams 3.5 m long are laid, and one under the intermediate support of this rod.

Cross-sectional dimensions of wooden beams for turnouts.

Type	Thickness	Depth h			The width of the top layer b	Beam Width with Unsawn Sides b2	The height of the sawn sides of the cut timber h1
		Broadened	Wide	Normal
Type I	180	220	200	---	260	300	150
Type II	160	220	---	175	250	280	130
Type III	160	---	200	175	230	260	130

Name of track superstructure material	Purpose	GOST
Wooden bars for turnouts:
Edged, Unedged	Type I - for main tracks Type II - for low-density main, receiving and departure routes and sorting. Type III - for access roads of industrial enterprises.	GOST 8816-70

Sets of wooden beams for turnouts (according to GOST 8816-70)

Bars length, m

Designation of a set of bars

A1

A2

A3

A4

A5

Б1

Б2

Rail type

Cross turnouts translations

Р65

Р65, Р50

Р65

Р50, Р43

Marks of turnouts

1/22

1/18

1/11

1/9

1/11

1/9

The number of bars in a set with their division along the width of the upper plate on B-broadened, W-wide, N-normal

B

W

B

W

B

W

B

W

B

N

B

Н N

B

N

3,00	16	-	22	9	16	-	15	2	16	-	17	-	-	-
3,25	14	25	2	14	-	10	-	10	1	7	-	7	-	-
3,50	5	16	5	12	-	8	-	8	-	7	-	7	19	-
3,75	-	16	-	12	-	7	-	4	-	8	-	5	18	-
4,00	-	14	-	11	-	5	-	6	-	4	-	3	8	-
4,25	-	12	-	9	4	2	4	1	6	-	3	1	8	-
4,50	-	10	-	8	6	1	5	1	7	-	7	-	10	-
4,75	-	10	-	9	-	6	-	4	2	3	3	1	4	4
5,00	-	11	-	9	-	5	-	4	-	5	-	5	-	8
5,25	-	10	-	8	-	6	-	4	-	6	-	4	-	8
5,50	-	11	-	7	-	4	-	-	-	3	-	-	4	-
ИТОГО	35	135	29	108	26	54	24	44	32	43	30	33	71	20
ВСЕГО	170		137		80		68		75		63		91
Set volume m³	32,77		26,00		15,46		12,55		12,39		10,07		16,10
Weight of one set, t	19,0		15,1		9,0		7,3		7,2		5,9		9,4