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The crown block can be classified into three types: fixed crown blocks installed above the shaft, fixed crown blocks used during shaft sinking and installed below the shaft, and traveling crown blocks. For diameters of 3.5 meters, a press-welded structure is employed; for diameters smaller than 3 meters, a monolithic cast steel structure is used; and for a diameter of 4 meters, a press-riveted structure is adopted.

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Elevator Accessory Series

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Product Overview

　　The crown block can be classified into three types: fixed crown blocks installed above the shaft, fixed crown blocks used during shaft sinking and located below ground, and traveling crown blocks. For diameters of 3.5 meters, a press-welded structure is employed; for diameters smaller than 3 meters, a monolithic cast-steel design is used; and for a diameter of 4 meters, a press-riveted structure is adopted.

　　At the very top of the mine shaft's headframe, you'll find a fixed pulley that adjusts the direction of the steel wire ropes. This crucial component supports the weight of the cage, skip bucket, or hoisting bucket—and is often regarded as a defining symbol of the mine. (Positioned atop the headframe or in an adit, it serves as the guide wheel that directs the movement of the lifting steel cables.) All according to standards set by the Ministry of Coal Industry.

Serial Number	Model	Diameter of the rope groove bottom circle D	Rope groove radius R	Maximum swimming distance S	Applicable Steel Wire Rope Diameter	Allowable Total Steel Wire Breaking Strength	Main dimensions						Number of foundation bolts: n	Moment of inertia	Quality
		Diameter of the rope groove bottom circle D	Rope groove radius R	Maximum swimming distance S	Applicable Steel Wire Rope Diameter	Allowable Total Steel Wire Breaking Strength	L	H	D ₁	A	B	d	Number of foundation bolts: n	Moment of inertia	Quality
		mm				KN	mm						One	kg·m ²	kg
1	TDG 600/9/300	600	9	300	14–16	160	670	95	690	260	-	18	4	4	130
2	TDG 800/11/700	800	11	700	>16–20	252	1100	95	920	260	-	18	4	13	220
3	TDG 1000/13.5/800	1000	13.5	800	> 20–24.5	382	1250	130	1140	350	-	26	4	31	425
4	TDG 1400/16/740	1400	16	740	> 24.5–30	597	1300	140	1580	340	60	22	8	105	675
5	TDG 1400/16/1350	1400	16	1350	> 24.5–30	597	1900	140	1580	340	60	22	8	105	850

Serial Number	Model	Diameter of the rope groove bottom circle D	Rope groove radius R	Applicable Steel Wire Rope Diameter	Allowable Total Steel Wire Breaking Strength	Main dimensions						Moment of inertia ^A	Quality ^b
						L	H	D ₁	A	B	d
		mm			KN	mm						kg·m ²	kg
1	TLG(H) 1600/10	1600	10	> 16–18	285	600	140	1750	340	60	22	141	600
2	TLG(H) 1600/11		11	> 18–20
3	TLG(H) 2000/12.5	2000	12.5	> 20–22	413	700	180	2160	460	80	32	310	845
4	TLG (H) 2000/13.5		13.5	> 22–24
5	TLG(H) 2500/15	2500	15	> 24–26	649	800	200	2690	485	80	32	860	1510
6	TLG(H) 2500/16		16	> 26–28
7	TLG (H) 2500/17		17	> 28–30
8	TLG(H) 3000/18	3000	18	>30~32	990	950	240	3210	600	92	40	1755	2490
9	TLG (H) 3000/19		19	> 32–34
10	TLG(H) 3000/20		20	> 34–36
11	TLH 3500/21.5	3500	21.5	> 36–39	1392	1000	275	3730	680	108	46	3410	3350
12	TLH 3500/23		23	> 39–42
13	TLH 4000/24	4000	24	> 42–45	1720	1030	300	4260	740	150	46	5843	4850
14	TLH 4000/26		26	> 45–48
15	TLH 5000/29	5000	29	> 48–52	2025	1030	320	5280	780	150	54	15031	6550
16	TLH 3500/23.5	3500	23.5	> 37–43	1392	1000	275	3760	680	108	46	3460	3730
17	TLH 4000/25	4000	25	> 43–47.5	1476	1030	280	4305	680	130	46	8240	5320
18	TLH 5000/29	5000	29	> 47.5–52	1780	1030	300	5290	740	150	46	17063	7280