
SANY Boom Assembly Stc250s5.1a
What is the SANY Boom Assembly Stc250s5.1a
- The SANY Boom Assembly STC250S5.1A represents a sophisticated telescopic boom system engineered for exceptional lifting performance and operational reliability. Central to this assembly is the advanced Telescopic mechanism STC250S5.1A.5 that enables smooth extension and retraction operations, complemented by a durable Rope supporting pulley and Cord roller that ensure proper cable management and guidance throughout the boom’s movement.
- The system incorporates a robust One-section boom assembly STC250S5.1A.1 as its primary structural element, supported by a reinforced Bracket that provides secure mounting and stability. Precision alignment is achieved through multiple Pin components and a specialized Shaft STC250H_1-18A that maintains perfect geometry during operation. The assembly is secured with numerous high-strength fasteners including Bolt, Nut, and Screw elements, supplemented by multiple Washer components that ensure vibration-resistant connections and even load distribution.
- The intelligent design of the SANY Boom Assembly STC250S5.1A demonstrates exceptional engineering quality, featuring precisely calibrated components that deliver reliable performance under maximum load conditions. Each element within this comprehensive boom system is manufactured to exacting tolerances, ensuring seamless integration and optimal functionality. This sophisticated assembly reflects SANY’s commitment to manufacturing excellence, providing operators with superior lifting capabilities and enhanced safety during complex lifting operations.
- The robust construction and advanced technology embodied in the SANY Boom Assembly STC250S5.1A contribute significantly to overall machine performance and operational efficiency, making it an essential component for heavy lifting applications in challenging working environments.
Parameters of SANY Boom Assembly Stc250s5.1a(1/11)
| Item No. | Part No. | Description | Qty. |
| 95 | 12759685 | Telescopic mechanismSTC250S5.1A.5 | 1 |
Parameters of SANY Boom Assembly Stc250s5.1a(2/11)
| Item No. | Part No. | Description | Qty. |
| 1 | 12295562 | Rope supporting pulley | 1 |
| 2 | 12277377 | Cord roller | 1 |
| 8 | 10139041 | Bracket | 2 |
| 10 | 12432938 | One-section boom assemblySTC250S5.1A.1 | 1 |
| 15 | A210491000031 | Pin | 12 |
| 16 | A210501000039 | Pin | 2 |
| 17 | A210401000016 | Washer | 4 |
| 18 | A210401000017 | Washer | 43 |
| 19 | A210405000007 | Washer | 43 |
| 20 | A210401000001 | Nut | 28 |
| 21 | A210405000011 | Washer | 12 |
| 22 | A210401000002 | Washer | 12 |
| 23 | A210405000001 | Washer | 10 |
| 24 | 12120099 | ShaftSTC250H_1-18A | 1 |
| 26 | A210307000017 | Nut | 12 |
| 28 | A210204000008 | Screw | 6 |
| 29 | A210111000029 | Bolt | 12 |
| 31 | A210111000037 | Bolt | 4 |
| 32 | A210111000039 | Bolt | 5 |
| 33 | A210111000028 | Bolt | 2 |
| 34 | A210307000040 | Nut | 18 |
| 37 | A210111000079 | Bolt | 4 |
Parameters of SANY Boom Assembly Stc250s5.1a(3/11)
| Item No. | Part No. | Description | Qty. |
| 38 | A210307000012 | Nut | 24 |
| 39 | A210203000023 | Screw | 6 |
| 40 | A210111000088 | Bolt | 33 |
| 43 | A210111000090 | Bolt | 6 |
| 45 | A210319000006 | Nut | 2 |
| 47 | 10138981 | Slide plate | 2 |
| 48 | 10139000 | Shaft | 1 |
| 49 | 10460715 | Bracket, lead wire(3) | 1 |
| 50 | 11891314 | Plate | 2 |
| 52 | 10138982 | Cushion block | 7 |
| 53 | 10138983 | Cushion block, adjustment | 12 |
| 54 | 10138984 | Cushion block, adjustment | 12 |
| 55 | 10138985 | Cushion block, adjustment | 12 |
| 56 | 10138993 | Sleeve | 13 |
| 57 | 10138431 | Bolt | 18 |
| 58 | 10138433 | Block, support | 6 |
| 59 | 10138436 | Wear pad | 2 |
| 60 | 10138481 | Bushing, spacer | 2 |
| 61 | 10136199 | Cover, round hole | 2 |
| 62 | 10136200 | Cover, annular hole | 6 |
| 63 | 11074457 | Seat, balanced valve, telescopic | 1 |
| 86 | 11063595 | Retainer | 2 |
Parameters of SANY Boom Assembly Stc250s5.1a(4/11)
| Item No. | Part No. | Description | Qty. |
| 88 | 00001669 | Plate (2) | 4 |
| 89 | 10430979 | Wear pad | 2 |
| 97 | A820101341354 | Mounting bracket, work lamp | 1 |
| 98 | 10694801 | Support | 1 |
| 99 | 10169998 | Mounting bracket, outline lamp , front | 2 |
| 108 | 11692540 | Shaft, pin | 4 |
| 110 | 11562556 | Bearing, composite | 2 |
Parameters of SANY Boom Assembly Stc250s5.1a(5/11)
| Item No. | Part No. | Description | Qty. |
| 3 | 10136596 | Pull plate | 2 |
| 9 | 10669838 | Roller, rope holder | 2 |
| 11 | 12410860 | 2-section boom assem.STC250S5.1A.2 | 1 |
| 15 | A210491000031 | Pin | 12 |
| 18 | A210401000017 | Washer | 43 |
| 19 | A210405000007 | Washer | 43 |
| 20 | A210401000001 | Nut | 28 |
| 21 | A210405000011 | Washer | 12 |
| 22 | A210401000002 | Washer | 12 |
| 23 | A210405000001 | Washer | 10 |
| 26 | A210307000017 | Nut | 12 |
| 28 | A210204000008 | Screw | 6 |
| 29 | A210111000029 | Bolt | 12 |
| 32 | A210111000039 | Bolt | 5 |
| 34 | A210307000040 | Nut | 18 |
| 35 | A210307000005 | Nut | 6 |
| 36 | A210111000117 | Bolt | 6 |
| 38 | A210307000012 | Nut | 24 |
| 42 | A210211000015 | Screw | 13 |
| 43 | A210111000090 | Bolt | 6 |
| 46 | A210111000094 | Bolt | 6 |
| 52 | 10138982 | Cushion block | 7 |
Parameters of SANY Boom Assembly Stc250s5.1a(6/11)
| Item No. | Part No. | Description | Qty. |
| 53 | 10138983 | Cushion block, adjustment | 12 |
| 54 | 10138984 | Cushion block, adjustment | 12 |
| 55 | 10138985 | Cushion block, adjustment | 12 |
| 57 | 10138431 | Bolt | 18 |
| 58 | 10138433 | Block, support | 6 |
| 64 | 10136601 | Wear pad | 2 |
| 65 | 10136782 | Slider | 4 |
| 66 | 10431338 | Wear pad | 2 |
| 68 | 10136790 | Plate (2) | 4 |
| 69 | 10136812 | Shaft, pin | 6 |
| 90 | 10431282 | Wear pad | 2 |
| 92 | 00001448 | Gasket | 4 |
| 93 | 11063600 | Retainer | 2 |
| 100 | 11589515 | Shaft, pin | 8 |
| 107 | 11685112 | Bracket, lead wire | 1 |
Parameters of SANY Boom Assembly Stc250s5.1a(7/11)
| Item No. | Part No. | Description | Qty. |
| 4 | 10138065 | Pull plate | 2 |
| 9 | 10669838 | Roller, rope holder | 2 |
| 12 | 12394897 | 3-section boom assem.STC250S5.1A.3 | 1 |
| 15 | A210491000031 | Pin | 12 |
| 18 | A210401000017 | Washer | 43 |
| 20 | A210401000001 | Nut | 28 |
| 21 | A210405000011 | Washer | 12 |
| 22 | A210401000002 | Washer | 12 |
| 23 | A210405000001 | Washer | 10 |
| 26 | A210307000017 | Nut | 12 |
| 28 | A210204000008 | Screw | 6 |
| 29 | A210111000029 | Bolt | 12 |
| 32 | A210111000039 | Bolt | 5 |
| 34 | A210307000040 | Nut | 18 |
| 35 | A210307000005 | Nut | 6 |
| 36 | A210111000117 | Bolt | 6 |
| 38 | A210307000012 | Nut | 24 |
| 40 | A210111000088 | Bolt | 33 |
| 42 | A210211000015 | Screw | 13 |
| 44 | A210211000023 | Screw | 4 |
| 46 | A210111000094 | Bolt | 6 |
| 52 | 10138982 | Cushion block | 7 |
Parameters of SANY Boom Assembly Stc250s5.1a(8/11)
| Item No. | Part No. | Description | Qty. |
| 53 | 10138983 | Cushion block, adjustment | 12 |
| 54 | 10138984 | Cushion block, adjustment | 12 |
| 55 | 10138985 | Cushion block, adjustment | 12 |
| 57 | 10138431 | Bolt | 18 |
| 58 | 10138433 | Block, support | 6 |
| 65 | 10136782 | Slider | 4 |
| 69 | 10136812 | Shaft, pin | 6 |
| 70 | 10137474 | Gasket | 4 |
| 71 | 10137483 | Pad, adjustment | 8 |
| 72 | A210111000025 | Bolt | 1 |
| 73 | 10137485 | Wear pad | 2 |
| 74 | 10431404 | Wear pad | 2 |
| 76 | 11063606 | Retainer | 2 |
| 77 | 10137482 | Wear pad | 4 |
| 94 | 10431339 | Wear pad | 2 |
| 96 | 10009314 | Gasket | 4 |
| 100 | 11589515 | Shaft, pin | 8 |
| 106 | 11685023 | Bracket, lead wire(1) | 1 |
Parameters of SANY Boom Assembly Stc250s5.1a(9/11)
| Item No. | Part No. | Description | Qty. |
| 5 | 10138100 | Pulley GP | 4 |
| 6 | 10138120 | Wheel GP, guide | 2 |
| 7 | 10138127 | Pull plate | 2 |
| 13 | 12411588 | 4-section boom assemblySTC250S5.1A.4 | 1 |
| 14 | 11052076 | Pulley, boom-tip | 1 |
| 18 | A210401000017 | Washer | 43 |
| 20 | A210401000001 | Nut | 28 |
| 25 | A290000001564 | Cap, protection, nipple, grease | 4 |
| 27 | A210111000023 | Bolt | 16 |
| 30 | 23002247 | Screw | 2 |
| 35 | A210307000005 | Nut | 6 |
| 36 | A210111000117 | Bolt | 6 |
| 38 | A210307000012 | Nut | 24 |
| 41 | A210111000089 | Bolt | 4 |
| 42 | A210211000015 | Screw | 13 |
| 44 | A210211000023 | Screw | 4 |
| 46 | A210111000094 | Bolt | 6 |
| 65 | 10136782 | Slider | 4 |
| 69 | 10136812 | Shaft, pin | 6 |
| 71 | 10137483 | Pad, adjustment | 8 |
| 72 | A210111000025 | Bolt | 1 |
| 75 | A829900002661 | Pin, elastic | 4 |
Parameters of SANY Boom Assembly Stc250s5.1a(10/11)
| Item No. | Part No. | Description | Qty. |
| 77 | 10137482 | Wear pad | 4 |
| 78 | 10431417 | Wear pad | 2 |
| 80 | 10137540 | Plate, shim | 4 |
| 81 | 10137548 | Bushing, spacer | 1 |
| 82 | 10137550 | Rail, guide | 2 |
| 83 | 10137519 | Bushing, spacer | 3 |
| 84 | 10137526 | Spacer bushing | 1 |
| 85 | 10137530 | Spacer bushing | 1 |
| 91 | 11058478 | Upper shaft, boom-head | 1 |
| 101 | 11263577 | Retainer | 2 |
| 102 | 11060900 | Plate, cover | 1 |
| 103 | 11060505 | Retainer | 6 |
| 104 | 11275233 | Pipe, rope guard | 1 |
| 105 | 10137524 | Safety latch | 1 |
| 109 | 11058483 | Lower shaft, boom-head | 1 |
Parameters of SANY Boom Assembly Stc250s5.1a11/11)
| Item No. | Part No. | Description | Qty. |
| 51 | 11645141 | Plate, trough | 7 |
| 67 | 12197073 | Trough PlateSTC500.1A-23 | 2 |
| 79 | 12253532 | Angle pointerSTC250H.1B.9 | 1 |
| 87 | 11141447 | Support, wire-tying | 3 |
Related SANY Spare Parts
Hot-Selling SANY Truck Crane
Why Choose Us?
SANYMACH offers professional product detail pages and technical documentation within minutes based on users’ equipment needs, ensuring clear information access and efficient procurement preparation. For customers of SANY construction machinery (including excavators, cranes, off-highway trucks like the SANY SKT90S, and concrete machinery), its decade-long industry expertise provides customized solution packages per project scale/business scenarios to accelerate project kickoff and operational efficiency. We also optimize equipment selection based on your construction scope, operational focus, capabilities, budget and site conditions for smooth execution, recommend cost-effective models per regional demands, suggest after-sales packages and maintenance cycles, and collaborate to ensure timely project delivery, long-term equipment value and mutual development with SANYMACH clients.
Online Catalog of SANY Parts
If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.















