AirTAC LSD High-Dust Linear Guides
LSD high-dust guides use a four-row ball carriage and matching rail. DD double wipers or ZZ...
Official reference
Based on manufacturer documentation
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Parts lists
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Availability / lead time
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Sourcing route & inquiry details
LSD high-dust guides use a four-row ball carriage and matching rail. DD double wipers or ZZ wiper plus metal scraper change the carriage length. Size codes 15/20/25/30/35 correspond to actual rail widths 15/20/23/28/34 mm. Match carriage form/length/count, rail drilling, preload/accuracy and lubrication connection; send label/drawing and load details for quotation.
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Match an LSD Model and Guide Requirement
Part of the LSD Series family.
View family overview →Installation Drawings & Technical Specifications
AirTAC LSD dust order 15 30 official Chinese reference
Helpful for Model Matching:
- Complete assembly or BK/RL separate-part codes and label
- Size code versus actual rail width; H/F1/F2/F3 form, S/N length and carriage count
- Rail length, end holes and mounting datum; confirm U/T conflict
- Preload/accuracy, mating codes, connector and DD/ZZ/E clearance
- Actual forces/moments, carriage spacing, quantity and destination
- Match size code versus actual rail width, carriage form/length and preload.
- Check rail drilling/end distances and mutually exclusive U/T mounting.
- Use DD/ZZ/E-specific overall lengths and maintenance conditions.
- Confirm load/moments, carriage spacing and BK/RL mating codes.
Catalogue Technical Specifications
| Identity / actual language | LSD is a low-installation four-row ball guide. H is square; F1 is flange top mounting, F2 bottom mounting, F3 both. The official PDF is Traditional Chinese despite its /en/ URL. Size codes 15/20/25/30/35 mean actual rail widths 15/20/23/28/34 mm. |
| Separate configuration fields | Carriage S = short, N = standard. Preload A = no preload, B = light, C = medium. Accuracy N = ordinary, H = high, P = precision. Surface blank = untreated, BB = black coating. Positional S/N/H/P/B fields are not pneumatic magnet or port suffixes. |
| Rail geometry / limits | One-piece rail maximum: 4040 mm for sizes 15/20/25, 4030 mm for 30/35; BB maximum 3000 mm. Hole pitch P: 60 mm for 15/20/25, 80 mm for 30/35. L = (n−1)P + S + E. Automatic matching assumes S=E; asymmetric drilling is not prohibited and requires drawing review. Rail length is customer-defined, not an enumerated cylinder stroke. |
| End-distance limits | Size 15 standard M4: 5–55 mm; U/M3: 4–56 mm. Size 20: 6–54 mm; size 25: 7–53 mm; size 30 standard M6: 7–73 mm, U/M8: 8–72 mm; size 35: 8–72 mm. Check both S and E and the actual hole geometry. |
| Mounting details differ between references | Size 15 standard top mounting uses M4, U uses M3; size 30 standard uses M6, U uses M8. U and T bottom mounting are mutually exclusive by an explicit note, although the source examples show both. Such conflicting codes need confirmation. Carriage F1/F2/F3 and rail T/U are separate fields. |
| Lubrication connector / packaging | Size 15: M4/AM6/LM6. Sizes 20/25/30/35: M6/AM8/LM8/A01/L01/SM6. AM/LM are straight/L adapters, not interchangeable thread sizes. Packaging blank = assembled, B = separate. Independent BK carriage, RL rail and L-P fitting codes require exact mating/group codes and separate confirmation. |
| Load / interface confirmation | Dynamic C and static C0 ratings in kN, and static moments MR/MP/MY in kN·m, depend on exact carriage form and length. They are not payload kg. Confirm load directions, carriage spacing, datum height, bolt holes, preload and accuracy; no automatic capacity or interchange approval. |
| Protection overall lengths | Standard carriage C in mm, S/N by size: 15 = 40.5/57; 20 = 46/65; 25 = 59/83; 30 = 68.5/97; 35 = 73.5/106.5. DD adds 7 mm for 15/20/25 and 8 mm for 30/35; ZZ adds 4.5 or 5 mm respectively. E lengths: 15 = 55/71.5; 20 = 62/81; 25 = 75/99; 30 = 84.5/113; 35 = 89.5/122.5. Confirm clearance. |
| High dust / test limits | DD means double wipers; ZZ means wiper plus metal scraper. Source tests used wood chips, iron chips and sand, 500 km each in a configured dust rig. These are not universal life guarantees or an IP rating. Dust protection changes carriage length. |
| Self lubrication / test limits | E adds an oil reservoir and wick. Friction increases by 5–7 N, not percent. The LSD20 test used 30 m/min, 1200 mm stroke and ISO VG680 oil. At 1000 km it consumed 20% of the oil; estimated 4000 km+ is conditional, not a maintenance-free warranty. Confirm oil and environment. The catalogue restricts a specialized smooth configuration; confirm that configuration separately. |
| Installation / maintenance | Parallel and height tolerance tables apply to 500 mm rail spacing and specific preload cells. Bolt torque units are N·cm, not N·m. Keep bolt plugs flush and prevent misalignment. Suggested grease replenishment is every 100 km or 3–6 months; oil supply depends on size and use. Nominal combined carriage length versus rail length is only a conservative consultation screen, not a manufacturer ordering prohibition. |
Ordering Codes, Fit Verification & Specifications
Ordering code matching
Match each code segment
Code format
LSD [BB] [size] [H/F1/F2/F3] [S/N] [count] X[length] S[end] [A/B/C] [N/H/P] [mount/connector/package]-[DD/ZZ]Complete assembly; BK/RL parts and spliced rails need separate confirmationLSD15 H N 1 X220 S20 A H-AM6-B-T-DD| 1Size / rail width | 2Carriage / preload / accuracy | 3Rail / protection |
|---|---|---|
| 15/20/25/30/35 =>15/20/23/28/34mm | H/F1/F2/F3;S/N;A/B/C;N/H/P | Length/end-distance geometry; U/T mutually exclusive; DD/ZZ/E changes C |
Quick check
Is size 25/30/35 the physical rail width?
No. Published widths are 23/28/34 mm. Match actual mounting dimensions and the exact carriage configuration.
Does E guarantee 4000 km of maintenance-free operation?
No. This is a conditional LSD20 test estimate with specified speed, stroke and oil. E also changes overall length and friction; confirm the application and maintenance.
LSD-DD/ZZ
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LSD-DD/ZZ Add other models, quantities, photos, drawings, or a BOM. One request can cover several product groups.